Fix a memory leak when there have failed, that we should free the pages
under the condition rem_sz > 0.
Signed-off-by: Li Bin <huawei.libin@xxxxxxxxxx>
---
drivers/scsi/sg.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 4e6af592..8441ac5 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1959,8 +1959,12 @@ static long sg_compat_ioctl(struct file *filp, unsigned int cmd_in, unsigned lon
k, rem_sz));
schp->bufflen = blk_size;
- if (rem_sz > 0) /* must have failed */
+ if (rem_sz > 0) { /* must have failed */
+ for (i = 0; i < k; i++)
+ __free_pages(schp->pages[i], order);
+
return -ENOMEM;
+ }
return 0;
out:
for (i = 0; i < k; i++)
--
1.7.12.4
