diff options
| author | Thorsten Blum <thorsten.blum@linux.dev> | 2025-11-22 12:45:37 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-11-27 14:24:43 -0800 |
| commit | af06a40474793ad9677d1771c0624ae8191f0892 (patch) | |
| tree | 6515832ca34fc48affb6c063f1086ba578c8cacf | |
| parent | 40cd0e8dd283b11aff9628fe7fd810ea7cc53e32 (diff) | |
init: replace simple_strtoul with kstrtoul to improve lpj_setup
Replace simple_strtoul() with the recommended kstrtoul() for parsing the
'lpj=' boot parameter.
Check the return value of kstrtoul() and reject invalid values. This adds
error handling while preserving existing behavior for valid values, and
removes use of the deprecated simple_strtoul() helper.
Link: https://lkml.kernel.org/r/20251122114539.446937-2-thorsten.blum@linux.dev
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | init/calibrate.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/init/calibrate.c b/init/calibrate.c index f3831272f113..09c2e6102110 100644 --- a/init/calibrate.c +++ b/init/calibrate.c @@ -14,10 +14,10 @@ unsigned long lpj_fine; unsigned long preset_lpj; + static int __init lpj_setup(char *str) { - preset_lpj = simple_strtoul(str,NULL,0); - return 1; + return kstrtoul(str, 0, &preset_lpj) == 0; } __setup("lpj=", lpj_setup); |