drm/i915: Fix off-by-one in reporting hanging process

[linux.git] / drivers / gpu / drm / i915 / i915_gpu_error.c

diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 3d80208886042f6b24de01a25a4a17bc49b295cc..26bac517e38360ea9f1e4113690b4c41d07045b8 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -1656,7 +1656,7 @@ error_msg(struct i915_gpu_state *error, unsigned long engines, const char *msg)
                        i915_error_generate_code(error, engines));
        if (engines) {
                /* Just show the first executing process, more is confusing */
-               i = ffs(engines);
+               i = __ffs(engines);
                len += scnprintf(error->error_msg + len,
                                 sizeof(error->error_msg) - len,
                                 ", in %s [%d]",