diff options
| author | Jean Delvare <khali@linux-fr.org> | 2006-04-26 23:00:16 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-05-09 22:04:21 +0200 |
| commit | b33d0798e6cfae1fcee75afc808fe5690a48a814 (patch) | |
| tree | fee80034c1633f195c1f32493063208abde7d5ca /drivers | |
| parent | [PATCH] scx200_acb: Fix return on init error (diff) | |
| download | linux-b33d0798e6cfae1fcee75afc808fe5690a48a814.tar.xz linux-b33d0798e6cfae1fcee75afc808fe5690a48a814.zip | |
[PATCH] scx200_acb: Fix resource name use after free
We can't pass a string on the stack to request_region. As soon as we
leave the function that stack is gone and the string is lost. Let's
use the same string we identify the i2c_adapter with instead, it's
more simple, more consistent, and just works.
This is the second half of fix to bug #6445.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/i2c/busses/scx200_acb.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/i2c/busses/scx200_acb.c b/drivers/i2c/busses/scx200_acb.c index f2dae6831142..42e4e00d6c32 100644 --- a/drivers/i2c/busses/scx200_acb.c +++ b/drivers/i2c/busses/scx200_acb.c @@ -415,7 +415,6 @@ static int __init scx200_acb_create(const char *text, int base, int index) struct scx200_acb_iface *iface; struct i2c_adapter *adapter; int rc; - char description[64]; iface = kzalloc(sizeof(*iface), GFP_KERNEL); if (!iface) { @@ -434,10 +433,7 @@ static int __init scx200_acb_create(const char *text, int base, int index) mutex_init(&iface->mutex); - snprintf(description, sizeof(description), "%s ACCESS.bus [%s]", - text, adapter->name); - - if (request_region(base, 8, description) == 0) { + if (!request_region(base, 8, adapter->name)) { printk(KERN_ERR NAME ": can't allocate io 0x%x-0x%x\n", base, base + 8-1); rc = -EBUSY; |