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authorSamuel Ortiz <sameo@linux.intel.com>2009-05-27 00:49:31 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2009-06-15 21:30:24 -0700
commit976821d756c53b421d7c58a9ed60125016d330aa (patch)
treec4da7b73e909439b664cb5e03f602229c6abdc2c /drivers/base/firmware_class.c
parent7fcab099795812a8a08eb3b8c8ddb35c3685045f (diff)
firmware: allocate firmware id dynamically
The firmware loader has a statically allocated 30 bytes long string for the firmware id (a.k.a. the firmware file name). There is no reason why we couldnt allocate it dynamically, and avoid having restrictions on the firmware names lengths. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Cc: Marcel Holtmann <holtmann@linux.intel.com> Cc: Zhu Yi <yi.zhu@intel.com>, Cc: John Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base/firmware_class.c')
-rw-r--r--drivers/base/firmware_class.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 24277025058..3591ba7ff6f 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -40,7 +40,7 @@ static int loading_timeout = 60; /* In seconds */
static DEFINE_MUTEX(fw_lock);
struct firmware_priv {
- char fw_id[FIRMWARE_NAME_MAX];
+ char *fw_id;
struct completion completion;
struct bin_attribute attr_data;
struct firmware *fw;
@@ -355,6 +355,7 @@ static void fw_dev_release(struct device *dev)
for (i = 0; i < fw_priv->nr_pages; i++)
__free_page(fw_priv->pages[i]);
kfree(fw_priv->pages);
+ kfree(fw_priv->fw_id);
kfree(fw_priv);
put_device(dev);
@@ -386,7 +387,13 @@ static int fw_register_device(struct device **dev_p, const char *fw_name,
init_completion(&fw_priv->completion);
fw_priv->attr_data = firmware_attr_data_tmpl;
- strlcpy(fw_priv->fw_id, fw_name, FIRMWARE_NAME_MAX);
+ fw_priv->fw_id = kstrdup(fw_name, GFP_KERNEL);
+ if (!fw_priv->fw_id) {
+ dev_err(device, "%s: Firmware name allocation failed\n",
+ __func__);
+ retval = -ENOMEM;
+ goto error_kfree;
+ }
fw_priv->timeout.function = firmware_class_timeout;
fw_priv->timeout.data = (u_long) fw_priv;
@@ -401,14 +408,15 @@ static int fw_register_device(struct device **dev_p, const char *fw_name,
if (retval) {
dev_err(device, "%s: device_register failed\n", __func__);
put_device(f_dev);
- goto error_kfree1;
+ goto error_kfree_fw_id;
}
*dev_p = f_dev;
return 0;
+error_kfree_fw_id:
+ kfree(fw_priv->fw_id);
error_kfree:
kfree(f_dev);
-error_kfree1:
kfree(fw_priv);
return retval;
}