From 8b491d750885ebe8e7d385ce4186c85957d67123 Mon Sep 17 00:00:00 2001 From: Todd Poynor Date: Thu, 4 Aug 2005 02:05:51 +0100 Subject: [MTD] mtdchar: Return EINVAL for bad seeks instead of fixing up to valid byte mtdchar return -EINVAL for seek prior to offset 0 or to beyond the last byte in the device/partition, similar to various other seek methods, instead of fixing up to first or last byte. Signed-off-by: Todd Poynor Signed-off-by: Thomas Gleixner --- drivers/mtd/mtdchar.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) (limited to 'drivers/mtd/mtdchar.c') diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 1ed602a0f24..4b3c6263e7f 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -1,5 +1,5 @@ /* - * $Id: mtdchar.c,v 1.73 2005/07/04 17:36:41 gleixner Exp $ + * $Id: mtdchar.c,v 1.74 2005/08/04 01:05:48 tpoynor Exp $ * * Character-device access to raw MTD devices. * @@ -69,26 +69,23 @@ static loff_t mtd_lseek (struct file *file, loff_t offset, int orig) switch (orig) { case 0: /* SEEK_SET */ - file->f_pos = offset; break; case 1: /* SEEK_CUR */ - file->f_pos += offset; + offset += file->f_pos; break; case 2: /* SEEK_END */ - file->f_pos =mtd->size + offset; + offset += mtd->size; break; default: return -EINVAL; } - if (file->f_pos < 0) - file->f_pos = 0; - else if (file->f_pos >= mtd->size) - file->f_pos = mtd->size - 1; + if (offset >= 0 && offset < mtd->size) + return file->f_pos = offset; - return file->f_pos; + return -EINVAL; } -- cgit v1.2.3 From 53f4654272df7c51064825024340554b39c9efba Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 27 Oct 2005 22:25:43 -0700 Subject: [PATCH] Driver Core: fix up all callers of class_device_create() The previous patch adding the ability to nest struct class_device changed the paramaters to the call class_device_create(). This patch fixes up all in-kernel users of the function. Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/mtdchar.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/mtd/mtdchar.c') diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 1ed602a0f24..c534fd5d95c 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -24,10 +24,10 @@ static void mtd_notify_add(struct mtd_info* mtd) if (!mtd) return; - class_device_create(mtd_class, MKDEV(MTD_CHAR_MAJOR, mtd->index*2), + class_device_create(mtd_class, NULL, MKDEV(MTD_CHAR_MAJOR, mtd->index*2), NULL, "mtd%d", mtd->index); - class_device_create(mtd_class, + class_device_create(mtd_class, NULL, MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1), NULL, "mtd%dro", mtd->index); } -- cgit v1.2.3 From 4e57b6817880946a3a78d5d8cad1ace363f7e449 Mon Sep 17 00:00:00 2001 From: Tim Schmielau Date: Sun, 30 Oct 2005 15:03:48 -0800 Subject: [PATCH] fix missing includes I recently picked up my older work to remove unnecessary #includes of sched.h, starting from a patch by Dave Jones to not include sched.h from module.h. This reduces the number of indirect includes of sched.h by ~300. Another ~400 pointless direct includes can be removed after this disentangling (patch to follow later). However, quite a few indirect includes need to be fixed up for this. In order to feed the patches through -mm with as little disturbance as possible, I've split out the fixes I accumulated up to now (complete for i386 and x86_64, more archs to follow later) and post them before the real patch. This way this large part of the patch is kept simple with only adding #includes, and all hunks are independent of each other. So if any hunk rejects or gets in the way of other patches, just drop it. My scripts will pick it up again in the next round. Signed-off-by: Tim Schmielau Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/mtd/mtdchar.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/mtd/mtdchar.c') diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index c534fd5d95c..16df1e4fb0e 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -13,6 +13,7 @@ #include #include #include +#include /* TASK_* */ #include #include -- cgit v1.2.3 From 15fdc52f35b853e3fa550087987b5ee4ffbd199b Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 7 Nov 2005 00:14:42 +0100 Subject: [MTD] Tidy up Tims include cleanup While we are at it, reorder the includes and remove the silly /* TASK */ comment Signed-off-by: Thomas Gleixner --- drivers/mtd/mtdchar.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) (limited to 'drivers/mtd/mtdchar.c') diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 8c0d94b72b6..d1ffd246ad5 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -1,22 +1,23 @@ /* - * $Id: mtdchar.c,v 1.74 2005/08/04 01:05:48 tpoynor Exp $ + * $Id: mtdchar.c,v 1.75 2005/11/06 10:04:37 gleixner Exp $ * * Character-device access to raw MTD devices. * */ #include +#include +#include +#include #include #include +#include +#include + #include #include -#include -#include -#include -#include /* TASK_* */ -#include -#include +#include static struct class *mtd_class; -- cgit v1.2.3 From 97894cda5773e59bd13e87b72077751099419a9f Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 7 Nov 2005 11:15:26 +0000 Subject: [MTD] core: Clean up trailing white spaces Signed-off-by: Thomas Gleixner --- drivers/mtd/mtdchar.c | 60 +++++++++++++++++++++++++-------------------------- 1 file changed, 30 insertions(+), 30 deletions(-) (limited to 'drivers/mtd/mtdchar.c') diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index d1ffd246ad5..6f044584bdc 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -1,5 +1,5 @@ /* - * $Id: mtdchar.c,v 1.75 2005/11/06 10:04:37 gleixner Exp $ + * $Id: mtdchar.c,v 1.76 2005/11/07 11:14:20 gleixner Exp $ * * Character-device access to raw MTD devices. * @@ -28,7 +28,7 @@ static void mtd_notify_add(struct mtd_info* mtd) class_device_create(mtd_class, NULL, MKDEV(MTD_CHAR_MAJOR, mtd->index*2), NULL, "mtd%d", mtd->index); - + class_device_create(mtd_class, NULL, MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1), NULL, "mtd%dro", mtd->index); @@ -108,23 +108,23 @@ static int mtd_open(struct inode *inode, struct file *file) return -EACCES; mtd = get_mtd_device(NULL, devnum); - + if (!mtd) return -ENODEV; - + if (MTD_ABSENT == mtd->type) { put_mtd_device(mtd); return -ENODEV; } file->private_data = mtd; - + /* You can't open it RW if it's not a writeable device */ if ((file->f_mode & 2) && !(mtd->flags & MTD_WRITEABLE)) { put_mtd_device(mtd); return -EACCES; } - + return 0; } /* mtd_open */ @@ -137,10 +137,10 @@ static int mtd_close(struct inode *inode, struct file *file) DEBUG(MTD_DEBUG_LEVEL0, "MTD_close\n"); mtd = TO_MTD(file); - + if (mtd->sync) mtd->sync(mtd); - + put_mtd_device(mtd); return 0; @@ -159,7 +159,7 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t int ret=0; int len; char *kbuf; - + DEBUG(MTD_DEBUG_LEVEL0,"MTD_read\n"); if (*ppos + count > mtd->size) @@ -167,11 +167,11 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t if (!count) return 0; - + /* FIXME: Use kiovec in 2.5 to lock down the user's buffers and pass them directly to the MTD functions */ while (count) { - if (count > MAX_KMALLOC_SIZE) + if (count > MAX_KMALLOC_SIZE) len = MAX_KMALLOC_SIZE; else len = count; @@ -179,7 +179,7 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t kbuf=kmalloc(len,GFP_KERNEL); if (!kbuf) return -ENOMEM; - + switch (MTD_MODE(file)) { case MTD_MODE_OTP_FACT: ret = mtd->read_fact_prot_reg(mtd, *ppos, len, &retlen, kbuf); @@ -192,7 +192,7 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t } /* Nand returns -EBADMSG on ecc errors, but it returns * the data. For our userspace tools it is important - * to dump areas with ecc errors ! + * to dump areas with ecc errors ! * Userspace software which accesses NAND this way * must be aware of the fact that it deals with NAND */ @@ -214,7 +214,7 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t kfree(kbuf); return ret; } - + kfree(kbuf); } @@ -231,10 +231,10 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count int len; DEBUG(MTD_DEBUG_LEVEL0,"MTD_write\n"); - + if (*ppos == mtd->size) return -ENOSPC; - + if (*ppos + count > mtd->size) count = mtd->size - *ppos; @@ -242,7 +242,7 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count return 0; while (count) { - if (count > MAX_KMALLOC_SIZE) + if (count > MAX_KMALLOC_SIZE) len = MAX_KMALLOC_SIZE; else len = count; @@ -257,7 +257,7 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count kfree(kbuf); return -EFAULT; } - + switch (MTD_MODE(file)) { case MTD_MODE_OTP_FACT: ret = -EROFS; @@ -282,7 +282,7 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count kfree(kbuf); return ret; } - + kfree(kbuf); } @@ -306,7 +306,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file, void __user *argp = (void __user *)arg; int ret = 0; u_long size; - + DEBUG(MTD_DEBUG_LEVEL0, "MTD_ioctl\n"); size = (cmd & IOCSIZE_MASK) >> IOCSIZE_SHIFT; @@ -318,7 +318,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file, if (!access_ok(VERIFY_WRITE, argp, size)) return -EFAULT; } - + switch (cmd) { case MEMGETREGIONCOUNT: if (copy_to_user(argp, &(mtd->numeraseregions), sizeof(int))) @@ -370,11 +370,11 @@ static int mtd_ioctl(struct inode *inode, struct file *file, erase->mtd = mtd; erase->callback = mtdchar_erase_callback; erase->priv = (unsigned long)&waitq; - + /* FIXME: Allow INTERRUPTIBLE. Which means not having the wait_queue head on the stack. - + If the wq_head is on the stack, and we leave because we got interrupted, then the wq_head is no longer there when the @@ -402,13 +402,13 @@ static int mtd_ioctl(struct inode *inode, struct file *file, struct mtd_oob_buf buf; void *databuf; ssize_t retlen; - + if(!(file->f_mode & 2)) return -EPERM; if (copy_from_user(&buf, argp, sizeof(struct mtd_oob_buf))) return -EFAULT; - + if (buf.length > 0x4096) return -EINVAL; @@ -424,7 +424,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file, databuf = kmalloc(buf.length, GFP_KERNEL); if (!databuf) return -ENOMEM; - + if (copy_from_user(databuf, buf.ptr, buf.length)) { kfree(databuf); return -EFAULT; @@ -448,7 +448,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file, if (copy_from_user(&buf, argp, sizeof(struct mtd_oob_buf))) return -EFAULT; - + if (buf.length > 0x4096) return -EINVAL; @@ -464,14 +464,14 @@ static int mtd_ioctl(struct inode *inode, struct file *file, databuf = kmalloc(buf.length, GFP_KERNEL); if (!databuf) return -ENOMEM; - + ret = (mtd->read_oob)(mtd, buf.start, buf.length, &retlen, databuf); if (put_user(retlen, (uint32_t __user *)argp)) ret = -EFAULT; else if (retlen && copy_to_user(buf.ptr, databuf, retlen)) ret = -EFAULT; - + kfree(databuf); break; } @@ -521,7 +521,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file, case MEMGETBADBLOCK: { loff_t offs; - + if (copy_from_user(&offs, argp, sizeof(loff_t))) return -EFAULT; if (!mtd->block_isbad) -- cgit v1.2.3