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media: cec-core: fix a bug at cec_error_inj_write()

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If the adapter doesn't have error_inj_parse_line() ops, the
write() logic won't return -EINVAL, but, instead, it will keep
looping, because "count" is a non-negative number.

Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Mauro Carvalho Chehab 2018-03-23 07:51:07 -04:00
parent afdb4ca2be
commit 98c1ce0ccf
1 changed files with 3 additions and 3 deletions
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6
drivers/media/cec/cec-core.c
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@ -209,14 +209,14 @@ static ssize_t cec_error_inj_write(struct file *file,
if (IS_ERR(buf))
return PTR_ERR(buf);
p = buf;
while (p && *p && count >= 0) {
while (p && *p) {
p = skip_spaces(p);
line = strsep(&p, "\n");
if (!*line || *line == '#')
continue;
if (!adap->ops->error_inj_parse_line(adap, line)) {
count = -EINVAL;
break;
kfree(buf);
return -EINVAL;
}
}
kfree(buf);