From d834c16516d1ebec4766fc58c059bf01311e6045 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 1 Oct 2006 13:17:44 -0700 Subject: [PATCH] pccard_store_cis: fix wrong error handling The test for the error from pcmcia_replace_cis() was incorrect, and would always trigger (because if an error didn't happen, the "ret" value would not be zero, it would be the passed-in count). Reported and debugged by Fabrice Bellet Rather than just fix the single broken test, make the code in question use an understandable code-sequence instead, fixing the whole function to be more readable. Signed-off-by: Linus Torvalds --- drivers/pcmcia/socket_sysfs.c | 27 ++++++++++++--------------- 1 file changed, 12 insertions(+), 15 deletions(-) diff --git a/drivers/pcmcia/socket_sysfs.c b/drivers/pcmcia/socket_sysfs.c index c5d7476da471..933cd864a5c9 100644 --- a/drivers/pcmcia/socket_sysfs.c +++ b/drivers/pcmcia/socket_sysfs.c @@ -298,7 +298,7 @@ static ssize_t pccard_store_cis(struct kobject *kobj, char *buf, loff_t off, siz { struct pcmcia_socket *s = to_socket(container_of(kobj, struct class_device, kobj)); cisdump_t *cis; - ssize_t ret = count; + int error; if (off) return -EINVAL; @@ -316,25 +316,22 @@ static ssize_t pccard_store_cis(struct kobject *kobj, char *buf, loff_t off, siz cis->Length = count + 1; memcpy(cis->Data, buf, count); - if (pcmcia_replace_cis(s, cis)) - ret = -EIO; - + error = pcmcia_replace_cis(s, cis); kfree(cis); + if (error) + return -EIO; - if (!ret) { - mutex_lock(&s->skt_mutex); - if ((s->callback) && (s->state & SOCKET_PRESENT) && - !(s->state & SOCKET_CARDBUS)) { - if (try_module_get(s->callback->owner)) { - s->callback->requery(s); - module_put(s->callback->owner); - } + mutex_lock(&s->skt_mutex); + if ((s->callback) && (s->state & SOCKET_PRESENT) && + !(s->state & SOCKET_CARDBUS)) { + if (try_module_get(s->callback->owner)) { + s->callback->requery(s); + module_put(s->callback->owner); } - mutex_unlock(&s->skt_mutex); } + mutex_unlock(&s->skt_mutex); - - return (ret); + return count; } -- 2.20.1