netdev - [PATCH v3 19/28] convert spu

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Message-ID: <20241102050827.2451599-19-viro@zeniv.linux.org.uk>
Date: Sat,  2 Nov 2024 05:08:17 +0000
From: Al Viro <viro@...iv.linux.org.uk>
To: linux-fsdevel@...r.kernel.org
Cc: viro@...iv.linux.org.uk,
	brauner@...nel.org,
	cgroups@...r.kernel.org,
	kvm@...r.kernel.org,
	netdev@...r.kernel.org,
	torvalds@...ux-foundation.org
Subject: [PATCH v3 19/28] convert spu_run(2)

all failure exits prior to fdget() are returns, fdput() is immediately
followed by return.

Reviewed-by: Christian Brauner <brauner@...nel.org>
Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
 arch/powerpc/platforms/cell/spu_syscalls.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/platforms/cell/spu_syscalls.c b/arch/powerpc/platforms/cell/spu_syscalls.c
index 64a4c9eac6e0..000894e07b02 100644
--- a/arch/powerpc/platforms/cell/spu_syscalls.c
+++ b/arch/powerpc/platforms/cell/spu_syscalls.c
@@ -77,19 +77,15 @@ SYSCALL_DEFINE4(spu_create, const char __user *, name, unsigned int, flags,
 
 SYSCALL_DEFINE3(spu_run,int, fd, __u32 __user *, unpc, __u32 __user *, ustatus)
 {
-	long ret;
-	struct fd arg;
 	CLASS(spufs_calls, calls)();
 	if (!calls)
 		return -ENOSYS;
 
-	ret = -EBADF;
-	arg = fdget(fd);
-	if (fd_file(arg)) {
-		ret = calls->spu_run(fd_file(arg), unpc, ustatus);
-		fdput(arg);
-	}
-	return ret;
+	CLASS(fd, arg)(fd);
+	if (fd_empty(arg))
+		return -EBADF;
+
+	return calls->spu_run(fd_file(arg), unpc, ustatus);
 }
 
 #ifdef CONFIG_COREDUMP
-- 
2.39.5