* [PATCH] fs/seq_file: Replace a seq_printf() call by seq_puts() in seq_hex_dump()
@ 2019-07-02 16:38 Markus Elfring
2019-07-03 9:53 ` Enrico Weigelt, metux IT consult
0 siblings, 1 reply; 3+ messages in thread
From: Markus Elfring @ 2019-07-02 16:38 UTC (permalink / raw)
To: linux-fsdevel, Alexander Viro; +Cc: LKML, kernel-janitors
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Tue, 2 Jul 2019 18:28:10 +0200
A string which did not contain a data format specification should be put
into a sequence. Thus use the corresponding function “seq_puts”.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
fs/seq_file.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/seq_file.c b/fs/seq_file.c
index abe27ec43176..ecc68e9dd31f 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -868,7 +868,7 @@ void seq_hex_dump(struct seq_file *m, const char *prefix_str, int prefix_type,
seq_printf(m, "%s%.8x: ", prefix_str, i);
break;
default:
- seq_printf(m, "%s", prefix_str);
+ seq_puts(m, prefix_str);
break;
}
--
2.22.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] fs/seq_file: Replace a seq_printf() call by seq_puts() in seq_hex_dump()
2019-07-02 16:38 [PATCH] fs/seq_file: Replace a seq_printf() call by seq_puts() in seq_hex_dump() Markus Elfring
@ 2019-07-03 9:53 ` Enrico Weigelt, metux IT consult
2019-07-03 11:01 ` Markus Elfring
0 siblings, 1 reply; 3+ messages in thread
From: Enrico Weigelt, metux IT consult @ 2019-07-03 9:53 UTC (permalink / raw)
To: Markus Elfring, linux-fsdevel, Alexander Viro; +Cc: LKML, kernel-janitors
On 02.07.19 18:38, Markus Elfring wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Tue, 2 Jul 2019 18:28:10 +0200
>
> A string which did not contain a data format specification should be put
> into a sequence. Thus use the corresponding function “seq_puts”.
Looks good, but have you checked whether "m" could ever be NULL and
whether seq_puts() has a check for that ?
--mtx
--
Enrico Weigelt, metux IT consult
Free software and Linux embedded engineering
info@metux.net -- +49-151-27565287
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: fs/seq_file: Replace a seq_printf() call by seq_puts() in seq_hex_dump()
2019-07-03 9:53 ` Enrico Weigelt, metux IT consult
@ 2019-07-03 11:01 ` Markus Elfring
0 siblings, 0 replies; 3+ messages in thread
From: Markus Elfring @ 2019-07-03 11:01 UTC (permalink / raw)
To: Enrico Weigelt, linux-fsdevel; +Cc: Alexander Viro, LKML, kernel-janitors
> Looks good,
Thanks for your feedback.
> but have you checked whether "m" could ever be NULL
I wonder about this enquiry.
This function parameter should be valid as usual.
Thus it should not be a null pointer under ordinary conditions.
> and whether seq_puts() has a check for that ?
These output functions do not provide an explicit sanity check for their first parameter
so far.
Regards,
Markus
^ permalink raw reply [flat|nested] 3+ messages in thread
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2019-07-02 16:38 [PATCH] fs/seq_file: Replace a seq_printf() call by seq_puts() in seq_hex_dump() Markus Elfring
2019-07-03 9:53 ` Enrico Weigelt, metux IT consult
2019-07-03 11:01 ` Markus Elfring
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