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Subject[PATCH][cciss] Fix a small memory leak in the cciss driver
Date
Hello,

There's a memory leak in the cciss driver.

in alloc_cciss_hba() we may leak sizeof(ctlr_info_t) bytes if a
call to alloc_disk(1 << NWD_SHIFT) fails.
This patch should fix the issue.

Spotted by the Coverity checker.
Compile tested only.


Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
---

drivers/block/cciss.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index a2d6612..ef7ba22 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -3227,12 +3227,15 @@ static int alloc_cciss_hba(void)
for (i = 0; i < MAX_CTLR; i++) {
if (!hba[i]) {
ctlr_info_t *p;
+
p = kzalloc(sizeof(ctlr_info_t), GFP_KERNEL);
if (!p)
goto Enomem;
p->gendisk[0] = alloc_disk(1 << NWD_SHIFT);
- if (!p->gendisk[0])
+ if (!p->gendisk[0]) {
+ kfree(p);
goto Enomem;
+ }
hba[i] = p;
return i;
}

-
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