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authorHaowen Bai <baihaowen@meizu.com>2022-03-17 12:24:49 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2022-11-24 15:12:17 +0300
commitfc21ed8f26d980428f9b4e08e0fb72c7f7ffc9b8 (patch)
tree2612dc06ab899b5b49a84578c31695847377f925 /drivers/macintosh/macio-adb.c
parenta823307bf0a3b79b27eea916bf6499ba4377cdf9 (diff)
downloadlinux-fc21ed8f26d980428f9b4e08e0fb72c7f7ffc9b8.tar.xz
macintosh/macio-adb: Fix warning comparing pointer to 0
Avoid pointer type value compared with 0 to make code clear. Signed-off-by: Haowen Bai <baihaowen@meizu.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/1647509089-4280-1-git-send-email-baihaowen@meizu.com
Diffstat (limited to 'drivers/macintosh/macio-adb.c')
-rw-r--r--drivers/macintosh/macio-adb.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/macintosh/macio-adb.c b/drivers/macintosh/macio-adb.c
index 9b63bd2551c6..3721402582b4 100644
--- a/drivers/macintosh/macio-adb.c
+++ b/drivers/macintosh/macio-adb.c
@@ -100,7 +100,7 @@ int macio_init(void)
unsigned int irq;
adbs = of_find_compatible_node(NULL, "adb", "chrp,adb0");
- if (adbs == 0)
+ if (!adbs)
return -ENXIO;
if (of_address_to_resource(adbs, 0, &r)) {
@@ -183,7 +183,7 @@ static int macio_send_request(struct adb_request *req, int sync)
req->reply_len = 0;
spin_lock_irqsave(&macio_lock, flags);
- if (current_req != 0) {
+ if (current_req) {
last_req->next = req;
last_req = req;
} else {
@@ -213,7 +213,8 @@ static irqreturn_t macio_adb_interrupt(int irq, void *arg)
spin_lock(&macio_lock);
if (in_8(&adb->intr.r) & TAG) {
handled = 1;
- if ((req = current_req) != 0) {
+ req = current_req;
+ if (req) {
/* put the current request in */
for (i = 0; i < req->nbytes; ++i)
out_8(&adb->data[i].r, req->data[i]);