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Subject[PATCH 19/49] ext4: Return after ext4_error in case of failures
Date
From: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

This fix some instances where we were continuing after calling
ext4_error. ext4_error call panic only if errors=panic mount option is
set. So we need to make sure we return correctly after ext4_error call

Reported by: Adrian Bunk <bunk@kernel.org>

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
fs/ext4/balloc.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 9568a57..ff3428e 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -587,11 +587,13 @@ do_more:
in_range(ext4_inode_bitmap(sb, desc), block, count) ||
in_range(block, ext4_inode_table(sb, desc), sbi->s_itb_per_group) ||
in_range(block + count - 1, ext4_inode_table(sb, desc),
- sbi->s_itb_per_group))
+ sbi->s_itb_per_group)) {
ext4_error (sb, "ext4_free_blocks",
"Freeing blocks in system zones - "
"Block = %llu, count = %lu",
block, count);
+ goto error_return;
+ }

/*
* We are about to start releasing blocks in the bitmap,
@@ -1690,11 +1692,13 @@ allocated:
in_range(ret_block, ext4_inode_table(sb, gdp),
EXT4_SB(sb)->s_itb_per_group) ||
in_range(ret_block + num - 1, ext4_inode_table(sb, gdp),
- EXT4_SB(sb)->s_itb_per_group))
+ EXT4_SB(sb)->s_itb_per_group)) {
ext4_error(sb, "ext4_new_block",
"Allocating block in system zone - "
"blocks from %llu, length %lu",
ret_block, num);
+ goto out;
+ }

performed_allocation = 1;

--
1.5.4.rc3.31.g1271-dirty


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