[PATCH] drm/imagination: Fix an IS_ERR vs NULL bug in pvr_context_create()

[Dan Carpenter]

The pvr_vm_context_lookup() function returns NULL on error (not error
pointers).  Update the check accordingly.

Fixes: d2d79d29bb98 ("drm/imagination: Implement context creation/destruction 
ioctls")
Signed-off-by: Dan Carpenter <dan.carpen...@linaro.org>
---
 drivers/gpu/drm/imagination/pvr_context.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/imagination/pvr_context.c 
b/drivers/gpu/drm/imagination/pvr_context.c
index eded5e955cc0..e38d3578fc09 100644
--- a/drivers/gpu/drm/imagination/pvr_context.c
+++ b/drivers/gpu/drm/imagination/pvr_context.c
@@ -315,8 +315,8 @@ int pvr_context_create(struct pvr_file *pvr_file, struct 
drm_pvr_ioctl_create_co
                goto err_free_ctx;
 
        ctx->vm_ctx = pvr_vm_context_lookup(pvr_file, args->vm_context_handle);
-       if (IS_ERR(ctx->vm_ctx)) {
-               err = PTR_ERR(ctx->vm_ctx);
+       if (!ctx->vm_ctx) {
+               err = -EINVAL;
                goto err_free_ctx;
        }
 
-- 
2.43.0