From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Sun, 28 Jan 2024 15:17:03 +0100
Reuse existing functionality from memdup_user() instead of keeping
duplicate source code.
Generated by: scripts/coccinelle/api/memdup_user.cocci
Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/misc/fastrpc.c | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 1c6c62a7f7f5..83da6ad4e541 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -1260,17 +1260,12 @@ static int fastrpc_init_create_static_process(struct fastrpc_user *fl,
goto err;
}
- name = kzalloc(init.namelen, GFP_KERNEL);
- if (!name) {
- err = -ENOMEM;
+ name = memdup_user(init.name, init.namelen);
+ if (IS_ERR(name) {
+ err = PTR_ERR(name);
goto err;
}
- if (copy_from_user(name, (void __user *)(uintptr_t)init.name, init.namelen)) {
- err = -EFAULT;
- goto err_name;
- }
-
if (!fl->cctx->remote_heap) {
err = fastrpc_remote_heap_alloc(fl, fl->sctx->dev, init.memlen,
&fl->cctx->remote_heap);
--
2.43.0
