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bus: moxtet: fix unsigned comparison to less than zero

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Currently the size_t variable res is being checked for
an error failure however the unsigned variable is never
less than zero so this test is always false. Fix this by
making variable res ssize_t

Link: https://lore.kernel.org/r/20190822010351.15660-2-marek.behun@nic.cz
Addresses-Coverity: ("Unsigned compared against 0")
Fixes: 5bc7f990cd ("bus: Add support for Moxtet bus")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Colin Ian King 2019-08-22 03:03:50 +02:00 committed by Arnd Bergmann
parent caebdd3c11
commit 6811d26df5
1 changed files with 1 additions and 1 deletions
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2
drivers/bus/moxtet.c
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@ -514,7 +514,7 @@ static ssize_t output_write(struct file *file, const char __user *buf,
struct moxtet *moxtet = file->private_data;
u8 bin[TURRIS_MOX_MAX_MODULES];
u8 hex[sizeof(bin) * 2 + 1];
size_t res;
ssize_t res;
loff_t dummy = 0;
int err, i;