drm/nouveau/pwr: fix missing mutex unlock in a failure path (35c33670) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/gpu/drm/nouveau/core/subdev/pwr/base.c

+5 −5

Original line number	Diff line number	Diff line
		@@ -32,6 +32,11 @@ nouveau_pwr_send(struct nouveau_pwr *ppwr, u32 reply[2],
		struct nouveau_subdev *subdev = nv_subdev(ppwr);
		u32 addr;

		/* wait for a free slot in the fifo */
		addr = nv_rd32(ppwr, 0x10a4a0);
		if (!nv_wait_ne(ppwr, 0x10a4b0, 0xffffffff, addr ^ 8))
		return -EBUSY;

		/* we currently only support a single process at a time waiting
		* on a synchronous reply, take the PPWR mutex and tell the
		* receive handler what we're waiting for
		@@ -42,11 +47,6 @@ nouveau_pwr_send(struct nouveau_pwr *ppwr, u32 reply[2],
		ppwr->recv.process = process;
		}

		/* wait for a free slot in the fifo */
		addr = nv_rd32(ppwr, 0x10a4a0);
		if (!nv_wait_ne(ppwr, 0x10a4b0, 0xffffffff, addr ^ 8))
		return -EBUSY;

		/* acquire data segment access */
		do {
		nv_wr32(ppwr, 0x10a580, 0x00000001);