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btrfs: fix some error checking for btrfs_decompress()

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The btrfs_decompress() function mostly (u32)-1 on error but it can
also return -EPERM or other kernel error codes from zstd_decompress().
The "ret" variable is an int, so we could just check for negatives.

Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Qu Wenruo <wqu@suse.com>
This commit is contained in:
Dan Carpenter 2023-08-03 13:29:34 +03:00 • committed by Tom Rini
parent 939390b203
commit 08404fa208
1 changed files with 2 additions and 2 deletions
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4
fs/btrfs/inode.c
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@ -390,7 +390,7 @@ int btrfs_read_extent_inline(struct btrfs_path *path,
csize);
ret = btrfs_decompress(btrfs_file_extent_compression(leaf, fi),
cbuf, csize, dbuf, dsize);
if (ret == (u32)-1) {
if (ret < 0) {
ret = -EIO;
goto out;
}
@ -500,7 +500,7 @@ int btrfs_read_extent_reg(struct btrfs_path *path,
ret = btrfs_decompress(btrfs_file_extent_compression(leaf, fi), cbuf,
csize, dbuf, dsize);
if (ret == (u32)-1) {
if (ret < 0) {
ret = -EIO;
goto out;
}