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Message-ID: <20241121141412.107370-3-andriy.shevchenko@linux.intel.com>
Date: Thu, 21 Nov 2024 16:12:52 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
kasan-dev@...glegroups.com,
linux-kernel@...r.kernel.org
Cc: Marco Elver <elver@...gle.com>,
Dmitry Vyukov <dvyukov@...gle.com>
Subject: [PATCH v2 2/2] kcsan: debugfs: Use krealloc_array() for initial allocation as well
Use krealloc_array() for initial allocation as well.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
kernel/kcsan/debugfs.c | 16 ++++++----------
1 file changed, 6 insertions(+), 10 deletions(-)
diff --git a/kernel/kcsan/debugfs.c b/kernel/kcsan/debugfs.c
index be7051d0e7f4..ac31412de646 100644
--- a/kernel/kcsan/debugfs.c
+++ b/kernel/kcsan/debugfs.c
@@ -145,6 +145,8 @@ static ssize_t insert_report_filterlist(const char *func)
{
unsigned long flags;
unsigned long addr = kallsyms_lookup_name(func);
+ unsigned long *new_addrs;
+ size_t new_size = 0;
ssize_t ret = 0;
if (!addr) {
@@ -156,18 +158,12 @@ static ssize_t insert_report_filterlist(const char *func)
if (report_filterlist.addrs == NULL) {
/* initial allocation */
- report_filterlist.addrs =
- kmalloc_array(report_filterlist.size,
- sizeof(unsigned long), GFP_ATOMIC);
- if (report_filterlist.addrs == NULL) {
- ret = -ENOMEM;
- goto out;
- }
+ new_size = report_filterlist.size;
} else if (report_filterlist.used == report_filterlist.size) {
/* resize filterlist */
- size_t new_size = report_filterlist.size * 2;
- unsigned long *new_addrs;
-
+ new_size = report_filterlist.size * 2;
+ }
+ if (new_size) {
new_addrs = krealloc_array(report_filterlist.addrs,
new_size, sizeof(*new_addrs), GFP_ATOMIC);
if (new_addrs == NULL) {
--
2.43.0.rc1.1336.g36b5255a03ac
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