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Message-Id: <20120620173021.851052224@linuxfoundation.org> Date: Wed, 20 Jun 2012 10:30:30 -0700 From: Greg KH <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: torvalds@...ux-foundation.org, akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk, Konrad Rzeszutek Wilk <konrad.wilk@...cle.com> Subject: [ 10/61] xen/hvc: Fix error cases around HVM_PARAM_CONSOLE_PFN 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com> commit a32c88b9386ce3df87f28dd46bdc3776cd6edf75 upstream. We weren't resetting the parameter to be passed in to a known default. Nor were we checking the return value of hvm_get_parameter. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/tty/hvc/hvc_xen.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/tty/hvc/hvc_xen.c +++ b/drivers/tty/hvc/hvc_xen.c @@ -219,7 +219,8 @@ static int xen_hvm_console_init(void) if (r < 0) goto err; info->evtchn = v; - hvm_get_parameter(HVM_PARAM_CONSOLE_PFN, &v); + v = 0; + r = hvm_get_parameter(HVM_PARAM_CONSOLE_PFN, &v); if (r < 0) goto err; mfn = v; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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