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authorHeiko Carstens <heiko.carstens@de.ibm.com>2009-10-13 10:44:07 +0200
committerJames Bottomley <James.Bottomley@suse.de>2009-10-22 09:38:42 +0900
commitd10c0858f618c20547d4eda8aee9c3afd91599cf (patch)
treedf1c20b8d735c50dd3847d95c6c1083093748649 /drivers/s390/scsi
parent37e6ba00720c2786330dec2a9a5081e9e049422f (diff)
[SCSI] zfcp: fix kfree handling in zfcp_init_device_setup
The pointer that is allocated with kmalloc() is passed to strsep() which modifies it. Later on the modified pointer value will be passed to kfree. Save the original pointer and pass that one to kfree instead. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/s390/scsi')
-rw-r--r--drivers/s390/scsi/zfcp_aux.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 0f79f3af4f5..2889e5f2dfd 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -128,12 +128,13 @@ out_ccwdev:
static void __init zfcp_init_device_setup(char *devstr)
{
char *token;
- char *str;
+ char *str, *str_saved;
char busid[ZFCP_BUS_ID_SIZE];
u64 wwpn, lun;
/* duplicate devstr and keep the original for sysfs presentation*/
- str = kmalloc(strlen(devstr) + 1, GFP_KERNEL);
+ str_saved = kmalloc(strlen(devstr) + 1, GFP_KERNEL);
+ str = str_saved;
if (!str)
return;
@@ -152,12 +153,12 @@ static void __init zfcp_init_device_setup(char *devstr)
if (!token || strict_strtoull(token, 0, (unsigned long long *) &lun))
goto err_out;
- kfree(str);
+ kfree(str_saved);
zfcp_init_device_configure(busid, wwpn, lun);
return;
- err_out:
- kfree(str);
+err_out:
+ kfree(str_saved);
pr_err("%s is not a valid SCSI device\n", devstr);
}