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| author | Chandra Seetharaman <sekharan@us.ibm.com> | 2011-09-07 23:37:54 +0400 |
|---|---|---|
| committer | Alex Elder <aelder@sgi.com> | 2011-10-12 06:15:01 +0400 |
| commit | b522950f0ab8551f2ef56c210ebd50e6c6396601 (patch) | |
| tree | abdd6143268403b82de0e61296b2fe864ae98c10 /fs/xfs/xfs_fsops.c | |
| parent | 04f658ee229f60dbb9a0dc2f3d6871b12b758051 (diff) | |
| download | linux-b522950f0ab8551f2ef56c210ebd50e6c6396601.tar.xz | |
xfs: Check the return value of xfs_buf_get()
Check the return value of xfs_buf_get() and fail appropriately.
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_fsops.c')
| -rw-r--r-- | fs/xfs/xfs_fsops.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index e023f940a3dd..1c6fdeb702ff 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -194,6 +194,10 @@ xfs_growfs_data_private( bp = xfs_buf_get(mp->m_ddev_targp, XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR(mp)), XFS_FSS_TO_BB(mp, 1), XBF_LOCK | XBF_MAPPED); + if (!bp) { + error = ENOMEM; + goto error0; + } agf = XFS_BUF_TO_AGF(bp); memset(agf, 0, mp->m_sb.sb_sectsize); agf->agf_magicnum = cpu_to_be32(XFS_AGF_MAGIC); @@ -227,6 +231,10 @@ xfs_growfs_data_private( bp = xfs_buf_get(mp->m_ddev_targp, XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)), XFS_FSS_TO_BB(mp, 1), XBF_LOCK | XBF_MAPPED); + if (!bp) { + error = ENOMEM; + goto error0; + } agi = XFS_BUF_TO_AGI(bp); memset(agi, 0, mp->m_sb.sb_sectsize); agi->agi_magicnum = cpu_to_be32(XFS_AGI_MAGIC); @@ -253,6 +261,10 @@ xfs_growfs_data_private( XFS_AGB_TO_DADDR(mp, agno, XFS_BNO_BLOCK(mp)), BTOBB(mp->m_sb.sb_blocksize), XBF_LOCK | XBF_MAPPED); + if (!bp) { + error = ENOMEM; + goto error0; + } block = XFS_BUF_TO_BLOCK(bp); memset(block, 0, mp->m_sb.sb_blocksize); block->bb_magic = cpu_to_be32(XFS_ABTB_MAGIC); @@ -276,6 +288,10 @@ xfs_growfs_data_private( XFS_AGB_TO_DADDR(mp, agno, XFS_CNT_BLOCK(mp)), BTOBB(mp->m_sb.sb_blocksize), XBF_LOCK | XBF_MAPPED); + if (!bp) { + error = ENOMEM; + goto error0; + } block = XFS_BUF_TO_BLOCK(bp); memset(block, 0, mp->m_sb.sb_blocksize); block->bb_magic = cpu_to_be32(XFS_ABTC_MAGIC); @@ -300,6 +316,10 @@ xfs_growfs_data_private( XFS_AGB_TO_DADDR(mp, agno, XFS_IBT_BLOCK(mp)), BTOBB(mp->m_sb.sb_blocksize), XBF_LOCK | XBF_MAPPED); + if (!bp) { + error = ENOMEM; + goto error0; + } block = XFS_BUF_TO_BLOCK(bp); memset(block, 0, mp->m_sb.sb_blocksize); block->bb_magic = cpu_to_be32(XFS_IBT_MAGIC); |