lkml.org 
[lkml]   [2018]   [Jun]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH] target: add error handling for match_int
Date
On Tue, 2018-06-12 at 12:52 +0800, Zhouyang Jia wrote:
> When match_int fails, the lack of error-handling code may
> cause unexpected results.
>
> This patch adds error-handling code after calling match_int.
>
> Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
> ---
> drivers/target/target_core_rd.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c
> index a6e8106..7bc89ff 100644
> --- a/drivers/target/target_core_rd.c
> +++ b/drivers/target/target_core_rd.c
> @@ -573,14 +573,16 @@ static ssize_t rd_set_configfs_dev_params(struct se_device *dev,
> token = match_token(ptr, tokens, args);
> switch (token) {
> case Opt_rd_pages:
> - match_int(args, &arg);
> + if (match_int(args, &arg))
> + return -EINVAL;
> rd_dev->rd_page_count = arg;
> pr_debug("RAMDISK: Referencing Page"
> " Count: %u\n", rd_dev->rd_page_count);
> rd_dev->rd_flags |= RDF_HAS_PAGE_COUNT;
> break;
> case Opt_rd_nullio:
> - match_int(args, &arg);
> + if (match_int(args, &arg))
> + return -EINVAL;
> if (arg != 1)
> break;
>

Please return the error code returned by match_int() instead of -EINVAL.

Thanks,

Bart.



\
 
 \ /
  Last update: 2018-06-12 15:25    [W:0.041 / U:0.088 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site