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authorPetr Mladek <pmladek@suse.com>2021-11-02 10:39:27 +0100
committerPetr Mladek <pmladek@suse.com>2021-11-02 10:39:27 +0100
commit40e64a88dadcfa168914065baf7f035de957bbe0 (patch)
tree06c8c4a9e6c1b478aa6851794c6a33bec1ce6ec4 /drivers/misc/lkdtm/core.c
parent24a1dffbecafeb00d8830985eb7a318e37aabc4e (diff)
parent6a7ca80f4033c9cf3003625b2ef8b497f4ec44da (diff)
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Merge branch 'for-5.16-vsprintf-pgp' into for-linus
Diffstat (limited to 'drivers/misc/lkdtm/core.c')
-rw-r--r--drivers/misc/lkdtm/core.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/misc/lkdtm/core.c b/drivers/misc/lkdtm/core.c
index 95b1c6800a22..fe6fd34b8caf 100644
--- a/drivers/misc/lkdtm/core.c
+++ b/drivers/misc/lkdtm/core.c
@@ -26,6 +26,7 @@
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/debugfs.h>
+#include <linux/utsname.h>
#define DEFAULT_COUNT 10
@@ -210,6 +211,8 @@ module_param(cpoint_count, int, 0644);
MODULE_PARM_DESC(cpoint_count, " Crash Point Count, number of times the "\
"crash point is to be hit to trigger action");
+/* For test debug reporting. */
+char *lkdtm_kernel_info;
/* Return the crashtype number or NULL if the name is invalid */
static const struct crashtype *find_crashtype(const char *name)
@@ -490,6 +493,11 @@ static int __init lkdtm_module_init(void)
crash_count = cpoint_count;
#endif
+ /* Common initialization. */
+ lkdtm_kernel_info = kasprintf(GFP_KERNEL, "kernel (%s %s)",
+ init_uts_ns.name.release,
+ init_uts_ns.name.machine);
+
/* Handle test-specific initialization. */
lkdtm_bugs_init(&recur_count);
lkdtm_perms_init();
@@ -538,6 +546,8 @@ static void __exit lkdtm_module_exit(void)
if (lkdtm_kprobe != NULL)
unregister_kprobe(lkdtm_kprobe);
+ kfree(lkdtm_kernel_info);
+
pr_info("Crash point unregistered\n");
}