drm/amd: cleanup get_mfd_cell_dev()

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@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
index 9f8cfaab3004..d6b0bff510aa 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);