[PATCH 6/7] kernel-trace: Adjust two checks for null pointers in uprobe_buffer_init()
From: SF Markus Elfring
Date: Fri May 05 2017 - 17:09:42 EST
From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 5 May 2017 22:30:16 +0200
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The script âcheckpatch.plâ pointed information out like the following.
Comparison to NULL could be written !â
Thus fix the affected source code place.
Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
kernel/trace/trace_uprobe.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index 3e662d7ea6a4..e9c1865f7397 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -705,13 +705,13 @@ static int uprobe_buffer_init(void)
int cpu, err_cpu;
uprobe_cpu_buffer = alloc_percpu(struct uprobe_cpu_buffer);
- if (uprobe_cpu_buffer == NULL)
+ if (!uprobe_cpu_buffer)
return -ENOMEM;
for_each_possible_cpu(cpu) {
struct page *p = alloc_pages_node(cpu_to_node(cpu),
GFP_KERNEL, 0);
- if (p == NULL) {
+ if (!p) {
err_cpu = cpu;
goto err;
}
--
2.12.2