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[PATCH] drivers/scsi/dpt_i2o.c: fix a NULL pointer dereference

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The Coverity checker spotted this obvious NULL pointer dereference.

Signed-off-by: Adrian Bunk <[email protected]>
Acked-by: Mark Salyzyn <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Adrian Bunk 2005-11-27 00:36:37 +01:00 • committed by Linus Torvalds
commit 458af5439f
1 changed files with 5 additions and 4 deletions
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9
drivers/scsi/dpt_i2o.c
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@ -816,7 +816,7 @@ static int adpt_hba_reset(adpt_hba* pHba)
static void adpt_i2o_sys_shutdown(void)
{
adpt_hba *pHba, *pNext;
struct adpt_i2o_post_wait_data *p1, *p2;
struct adpt_i2o_post_wait_data *p1, *old;
printk(KERN_INFO"Shutting down Adaptec I2O controllers.\n");
printk(KERN_INFO" This could take a few minutes if there are many devices attached\n");
@ -830,13 +830,14 @@ static void adpt_i2o_sys_shutdown(void)
}
/* Remove any timedout entries from the wait queue. */
p2 = NULL;
// spin_lock_irqsave(&adpt_post_wait_lock, flags);
/* Nothing should be outstanding at this point so just
* free them
*/
for(p1 = adpt_post_wait_queue; p1; p2 = p1, p1 = p2->next) {
kfree(p1);
for(p1 = adpt_post_wait_queue; p1;) {
old = p1;
p1 = p1->next;
kfree(old);
}
// spin_unlock_irqrestore(&adpt_post_wait_lock, flags);
adpt_post_wait_queue = NULL;