staging: unisys: visorbus: don't ignore visorchannel_read error (711c67f4) · Commits · 戴 / test

Don't override the visorchannel_read_error, just return the error that it generates. Signed-off-by:

drivers/staging/unisys/visorbus/visorbus_main.c

+7 −4

Original line number	Diff line number	Diff line
		@@ -691,6 +691,8 @@ static int
		get_vbus_header_info(struct visorchannel *chan,
		struct spar_vbus_headerinfo *hdr_info)
		{
		int err;

		if (!spar_check_channel(visorchannel_get_header(chan),
		spar_vbus_channel_protocol_uuid,
		"vbus",
		@@ -699,10 +701,11 @@ get_vbus_header_info(struct visorchannel *chan,
		SPAR_VBUS_CHANNEL_PROTOCOL_SIGNATURE))
		return -EINVAL;

		if (visorchannel_read(chan, sizeof(struct channel_header), hdr_info,
		sizeof(*hdr_info)) < 0) {
		return -EIO;
		}
		err = visorchannel_read(chan, sizeof(struct channel_header), hdr_info,
		sizeof(*hdr_info));
		if (err < 0)
		return err;

		if (hdr_info->struct_bytes < sizeof(struct spar_vbus_headerinfo))
		return -EINVAL;