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gfs2: Fix gfs2_file_buffered_write endless loop workaround

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[ Upstream commit 46f3e0421ccb5474b5c006b0089b9dfd42534bb6 ]

Since commit 554c577cee95b, gfs2_file_buffered_write() can accidentally
return a truncated iov_iter, which might confuse callers.  Fix that.

Fixes: 554c577cee95b ("gfs2: Prevent endless loops in gfs2_file_buffered_write")
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Andreas Gruenbacher
2022-03-17 14:47:24 +01:00
committed by Greg Kroah-Hartman
parent 9b7eb92dac
commit 008e29d172
1 changed files with 1 additions and 0 deletions
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fs/gfs2/file.c
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@@ -1086,6 +1086,7 @@ out_uninit:
gfs2_holder_uninit(gh); gfs2_holder_uninit(gh);
if (statfs_gh) if (statfs_gh)
kfree(statfs_gh); kfree(statfs_gh);
from->count = orig_count - read;
return read ? read : ret; return read ? read : ret;
} }