It's simpler to just use snprintf() to print this to one buffer instead
of using strcpy() and strcat(). Also using snprintf() is slightly safer
than using sprintf().
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
index 9f8cfaa..d6b0bff 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
@@ -240,12 +240,10 @@ static int acp_poweron(struct generic_pm_domain *genpd)
static struct device *get_mfd_cell_dev(const char *device_name, int r)
{
char auto_dev_name[25];
- char buf[8];
struct device *dev;
- sprintf(buf, ".%d.auto", r);
- strcpy(auto_dev_name, device_name);
- strcat(auto_dev_name, buf);
+ snprintf(auto_dev_name, sizeof(auto_dev_name),
+ "%s.%d.auto", device_name, r);
dev = bus_find_device_by_name(&platform_bus_type, NULL, auto_dev_name);
dev_info(dev, "device %s added to pm domain\n", auto_dev_name);
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