From: Harshad Shirwadkar <harshadshirwadkar@xxxxxxxxx>
It is not guaranteed that __ext4_get_inode_loc will definitely set
err_blk pointer when it returns EIO. To avoid using uninitialized
variables, let's first set err_blk to 0.
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@xxxxxxxxx>
---
fs/ext4/inode.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index bfd3545f1e5d..fbdd2dda57ae 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4523,7 +4523,7 @@ static int __ext4_get_inode_loc(struct super_block *sb, unsigned long ino,
static int __ext4_get_inode_loc_noinmem(struct inode *inode,
struct ext4_iloc *iloc)
{
- ext4_fsblk_t err_blk;
+ ext4_fsblk_t err_blk = 0;
int ret;
ret = __ext4_get_inode_loc(inode->i_sb, inode->i_ino, NULL, iloc,
@@ -4538,7 +4538,7 @@ static int __ext4_get_inode_loc_noinmem(struct inode *inode,
int ext4_get_inode_loc(struct inode *inode, struct ext4_iloc *iloc)
{
- ext4_fsblk_t err_blk;
+ ext4_fsblk_t err_blk = 0;
int ret;
ret = __ext4_get_inode_loc(inode->i_sb, inode->i_ino, inode, iloc,
--
2.34.0.rc2.393.gf8c9666880-goog
