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authorTakashi Iwai <tiwai@suse.de>2020-06-01 20:26:07 +0200
committerTakashi Iwai <tiwai@suse.de>2020-06-01 20:26:07 +0200
commit7318234c8d7c0f209f993ee46a7ea148efdb28b9 (patch)
tree1a623f3bc3fdee5f5a73a7bfca4c5ab1a3d44919 /kernel/trace/trace_kprobe.c
parentALSA: usb-audio: Fixing usage of plain int instead of NULL (diff)
parentMerge remote-tracking branch 'asoc/for-5.8' into asoc-linus (diff)
downloadlinux-7318234c8d7c0f209f993ee46a7ea148efdb28b9.tar.xz
linux-7318234c8d7c0f209f993ee46a7ea148efdb28b9.zip
Merge tag 'asoc-v5.8' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v5.8 This has been another very active release with a bunch of new drivers, lots of fixes everywhere and continued core improvements from Morimoto-san: - Lots of core cleanups and refactorings from Morimoto-san, factoring out common operations and making the card abstraction more solid. - Continued work on cleaning up and improving the Intel drivers, along with some new platform support for them. - Fixes to make the Marvell SSPA driver work upstream. - Support for AMD Renoir ACP, Dialog DA7212, Freescale EASRC and i.MX8M, Intel Elkhard Lake, Maxim MAX98390, Nuvoton NAU8812 and NAU8814 and Realtek RT1016.
Diffstat (limited to 'kernel/trace/trace_kprobe.c')
-rw-r--r--kernel/trace/trace_kprobe.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index d0568af4a0ef..35989383ae11 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -453,7 +453,7 @@ static bool __within_notrace_func(unsigned long addr)
static bool within_notrace_func(struct trace_kprobe *tk)
{
- unsigned long addr = addr = trace_kprobe_address(tk);
+ unsigned long addr = trace_kprobe_address(tk);
char symname[KSYM_NAME_LEN], *p;
if (!__within_notrace_func(addr))
@@ -940,6 +940,9 @@ EXPORT_SYMBOL_GPL(kprobe_event_cmd_init);
* complete command or only the first part of it; in the latter case,
* kprobe_event_add_fields() can be used to add more fields following this.
*
+ * Unlikely the synth_event_gen_cmd_start(), @loc must be specified. This
+ * returns -EINVAL if @loc == NULL.
+ *
* Return: 0 if successful, error otherwise.
*/
int __kprobe_event_gen_cmd_start(struct dynevent_cmd *cmd, bool kretprobe,
@@ -953,6 +956,9 @@ int __kprobe_event_gen_cmd_start(struct dynevent_cmd *cmd, bool kretprobe,
if (cmd->type != DYNEVENT_TYPE_KPROBE)
return -EINVAL;
+ if (!loc)
+ return -EINVAL;
+
if (kretprobe)
snprintf(buf, MAX_EVENT_NAME_LEN, "r:kprobes/%s", name);
else