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| author | Mark Pearson <mpearson-lenovo@squebb.ca> | 2023-04-02 21:31:19 -0400 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2023-04-03 11:36:23 +0200 |
| commit | e7d796fccdc8d17c2d21817ebe4c7bf5bbfe5433 (patch) | |
| tree | 0f602a55dce8e7bb81b60a98a122a8702fd8fe8e /drivers/platform/x86/think-lmi.c | |
| parent | a3c4c053014585dcf20f4df954791b74d8a8afcd (diff) | |
| download | linux-stable-e7d796fccdc8d17c2d21817ebe4c7bf5bbfe5433.tar.gz linux-stable-e7d796fccdc8d17c2d21817ebe4c7bf5bbfe5433.tar.bz2 linux-stable-e7d796fccdc8d17c2d21817ebe4c7bf5bbfe5433.zip | |
platform/x86: think-lmi: Fix memory leaks when parsing ThinkStation WMI strings
My previous commit introduced a memory leak where the item allocated
from tlmi_setting was not freed.
This commit also renames it to avoid confusion with the similarly name
variable in the same function.
Fixes: 8a02d70679fc ("platform/x86: think-lmi: Add possible_values for ThinkStation")
Reported-by: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>
Link: https://lore.kernel.org/lkml/df26ff45-8933-f2b3-25f4-6ee51ccda7d8@gmx.de/T/
Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Link: https://lore.kernel.org/r/20230403013120.2105-1-mpearson-lenovo@squebb.ca
Tested-by: Mario Limonciello <mario.limonciello@amd.com>
Tested-by: Mirsad Goran Todorovac <mirsad.todorovac@alu.unizg.hr>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform/x86/think-lmi.c')
| -rw-r--r-- | drivers/platform/x86/think-lmi.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c index 6034df6d577d..87f832142d8d 100644 --- a/drivers/platform/x86/think-lmi.c +++ b/drivers/platform/x86/think-lmi.c @@ -1459,10 +1459,10 @@ static int tlmi_analyze(void) * name string. * Try and pull that out if it's available. */ - char *item, *optstart, *optend; + char *optitem, *optstart, *optend; - if (!tlmi_setting(setting->index, &item, LENOVO_BIOS_SETTING_GUID)) { - optstart = strstr(item, "[Optional:"); + if (!tlmi_setting(setting->index, &optitem, LENOVO_BIOS_SETTING_GUID)) { + optstart = strstr(optitem, "[Optional:"); if (optstart) { optstart += strlen("[Optional:"); optend = strstr(optstart, "]"); @@ -1471,6 +1471,7 @@ static int tlmi_analyze(void) kstrndup(optstart, optend - optstart, GFP_KERNEL); } + kfree(optitem); } } /* |