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udf: One function call less in udf_fill_super() after error detection

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The iput() function was called in up to three cases by the udf_fill_super()
function during error handling even if the passed data structure element
contained still a null pointer. This implementation detail could be improved
by the introduction of another jump label.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Markus Elfring 2014-11-18 18:29:10 +01:00 committed by Jan Kara
parent 0d454e4a44
commit fdf2657bc8
1 changed files with 3 additions and 2 deletions
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5
fs/udf/super.c
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@ -2082,12 +2082,12 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
mutex_init(&sbi->s_alloc_mutex);
if (!udf_parse_options((char *)options, &uopt, false))
goto error_out;
goto parse_options_failure;
if (uopt.flags & (1 << UDF_FLAG_UTF8) &&
uopt.flags & (1 << UDF_FLAG_NLS_MAP)) {
udf_err(sb, "utf8 cannot be combined with iocharset\n");
goto error_out;
goto parse_options_failure;
}
#ifdef CONFIG_UDF_NLS
if ((uopt.flags & (1 << UDF_FLAG_NLS_MAP)) && !uopt.nls_map) {
@ -2238,6 +2238,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
error_out:
iput(sbi->s_vat_inode);
parse_options_failure:
#ifdef CONFIG_UDF_NLS
if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
unload_nls(sbi->s_nls_map);