linux-kernel - [PATCH] drm/nouveau/i2c: do not use assignment in if condition

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Message-ID: <2156ff3c1fcec8914f1493ac6d7cd807@208suo.com>
Date:   Mon, 10 Jul 2023 14:37:01 +0800
From:   sunran001@...suo.com
To:     airlied@...il.com, daniel@...ll.ch
Cc:     dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] drm/nouveau/i2c: do not use assignment in if condition

Assignments in if condition are less readable and error-prone.  Fixes
also checkpatch warning:

ERROR: do not use assignment in if condition

Signed-off-by: Ran Sun <sunran001@...suo.com>
---
  drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busgf119.c | 3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busgf119.c 
b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busgf119.c
index 96bbdda0f439..a1cf406ff141 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busgf119.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busgf119.c
@@ -85,7 +85,8 @@ gf119_i2c_bus_new(struct nvkm_i2c_pad *pad, int id, u8 
drive,
  {
      struct gf119_i2c_bus *bus;

-    if (!(bus = kzalloc(sizeof(*bus), GFP_KERNEL)))
+    bus = kzalloc(sizeof(*bus), GFP_KERNEL);
+    if (!bus)
          return -ENOMEM;
      *pbus = &bus->base;