From 6ea8631dc2734a780aafd440bc3628fe04975252 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 5 Jun 2014 23:29:47 +0200 Subject: [PATCH] pas16: don't call free_dma() The pas16 scsi driver does not use DMA, and the call to free_dma() in its exit function seems to have been copied incorrectly from another driver but never caused trouble. One case where it gets in the way is randconfig builds on ARM, which depending on the configuration does not provide a free_dma() function, causing this build error: drivers/scsi/pas16.c: In function 'pas16_release': drivers/scsi/pas16.c:611:3: error: implicit declaration of function 'free_dma' [-Werror=implicit-function-declaration] free_dma(shost->dma_channel); Removing the incorrect function calls should be the obvious fix for this, with no downsides. Signed-off-by: Arnd Bergmann Reviewed-by: Finn Thain Signed-off-by: Christoph Hellwig --- drivers/scsi/pas16.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/scsi/pas16.c b/drivers/scsi/pas16.c index 0d78a4d5576c..80bacb5dc1d4 100644 --- a/drivers/scsi/pas16.c +++ b/drivers/scsi/pas16.c @@ -607,8 +607,6 @@ static int pas16_release(struct Scsi_Host *shost) if (shost->irq) free_irq(shost->irq, shost); NCR5380_exit(shost); - if (shost->dma_channel != 0xff) - free_dma(shost->dma_channel); if (shost->io_port && shost->n_io_port) release_region(shost->io_port, shost->n_io_port); scsi_unregister(shost);