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Date: Tue, 07 Aug 2012 04:28:25 +0100 From: Ben Hutchings <ben@...adent.org.uk> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: torvalds@...ux-foundation.org, akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk, Takashi Iwai <tiwai@...e.de> Subject: [ 30/70] ALSA: mpu401: Fix missing initialization of irq field 3.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Takashi Iwai <tiwai@...e.de> commit bc733d495267a23ef8660220d696c6e549ce30b3 upstream. The irq field of struct snd_mpu401 is supposed to be initialized to -1. Since it's set to zero as of now, a probing error before the irq installation results in a kernel warning "Trying to free already-free IRQ 0". Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=44821 Signed-off-by: Takashi Iwai <tiwai@...e.de> Signed-off-by: Ben Hutchings <ben@...adent.org.uk> --- sound/drivers/mpu401/mpu401_uart.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/drivers/mpu401/mpu401_uart.c b/sound/drivers/mpu401/mpu401_uart.c index 1cff331..4608c2c 100644 --- a/sound/drivers/mpu401/mpu401_uart.c +++ b/sound/drivers/mpu401/mpu401_uart.c @@ -554,6 +554,7 @@ int snd_mpu401_uart_new(struct snd_card *card, int device, spin_lock_init(&mpu->output_lock); spin_lock_init(&mpu->timer_lock); mpu->hardware = hardware; + mpu->irq = -1; if (! (info_flags & MPU401_INFO_INTEGRATED)) { int res_size = hardware == MPU401_HW_PC98II ? 4 : 2; mpu->res = request_region(port, res_size, "MPU401 UART"); -- 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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