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fs: ext4fs: Use unwind goto to free memory on error

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Ensure that allocated memory is freed on error exit replace the direct
return calls with 'goto fail'.

This issue found by Smatch.

Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
This commit is contained in:
Andrew Goodbody
2025-07-04 13:32:43 +01:00
committed by Tom Rini
parent a7e44898b4
commit 36f05e6224
1 changed files with 3 additions and 3 deletions
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6
fs/ext4/ext4_write.c
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@@ -877,19 +877,19 @@ int ext4fs_write(const char *fname, const char *buffer,
if (ext4fs_init() != 0) {
printf("error in File System init\n");
return -1;
goto fail;
}
missing_feat = le32_to_cpu(fs->sb->feature_incompat) & ~EXT4_FEATURE_INCOMPAT_SUPP;
if (missing_feat) {
log_err("Unsupported features found %08x, not writing.\n", missing_feat);
return -1;
goto fail;
}
missing_feat = le32_to_cpu(fs->sb->feature_ro_compat) & ~EXT4_FEATURE_RO_COMPAT_SUPP;
if (missing_feat) {
log_err("Unsupported RO compat features found %08x, not writing.\n", missing_feat);
return -1;
goto fail;
}
inodes_per_block = fs->blksz / fs->inodesz;