lkml.org 
[lkml]   [2023]   [Apr]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/2] platform/x86: think-lmi: Fix memory leaks when parsing ThinkStation WMI strings
Date
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>
---
This patch series builds on top of the proposed patch from Armin Wolf
"platform/x86: think-lmi: Fix memory leak when showing current settings"

drivers/platform/x86/think-lmi.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c
index 88da7bcb6ce9..ad952b49617b 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);
}
}
/*
--
2.39.2
\
 
 \ /
  Last update: 2023-04-01 20:45    [W:0.061 / U:0.788 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site