From 68fc4fabca897a09f75f53bac14cdc7a98f52210 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Thu, 19 Jul 2007 01:47:50 -0700 Subject: [PATCH] unregister_chrdev(): ignore the return value unregister_chrdev() always returns 0. There is no need to check the return value. Signed-off-by: Akinobu Mita Cc: "David S. Miller" Cc: Takashi Iwai Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/cris/arch-v10/drivers/pcf8563.c | 4 +--- arch/cris/arch-v32/drivers/pcf8563.c | 4 +--- arch/sparc64/solaris/socksys.c | 3 +-- drivers/char/ip2/ip2main.c | 4 +--- drivers/char/mbcs.c | 7 +------ drivers/char/stallion.c | 5 +---- drivers/char/viotape.c | 7 +------ drivers/net/ppp_generic.c | 3 +-- sound/core/sound.c | 3 +-- 9 files changed, 9 insertions(+), 31 deletions(-) diff --git a/arch/cris/arch-v10/drivers/pcf8563.c b/arch/cris/arch-v10/drivers/pcf8563.c index d47cfbf98d6..1de0026bb94 100644 --- a/arch/cris/arch-v10/drivers/pcf8563.c +++ b/arch/cris/arch-v10/drivers/pcf8563.c @@ -180,9 +180,7 @@ err: void __exit pcf8563_exit(void) { - if (unregister_chrdev(PCF8563_MAJOR, DEVICE_NAME) < 0) { - printk(KERN_INFO "%s: Unable to unregister device.\n", PCF8563_NAME); - } + unregister_chrdev(PCF8563_MAJOR, DEVICE_NAME); } /* diff --git a/arch/cris/arch-v32/drivers/pcf8563.c b/arch/cris/arch-v32/drivers/pcf8563.c index fa8d50007e4..da479a14f83 100644 --- a/arch/cris/arch-v32/drivers/pcf8563.c +++ b/arch/cris/arch-v32/drivers/pcf8563.c @@ -193,9 +193,7 @@ err: void __exit pcf8563_exit(void) { - if (unregister_chrdev(PCF8563_MAJOR, DEVICE_NAME) < 0) { - printk(KERN_INFO "%s: Unable to unregister device.\n", PCF8563_NAME); - } + unregister_chrdev(PCF8563_MAJOR, DEVICE_NAME); } /* diff --git a/arch/sparc64/solaris/socksys.c b/arch/sparc64/solaris/socksys.c index e94f6e5d945..7736411f244 100644 --- a/arch/sparc64/solaris/socksys.c +++ b/arch/sparc64/solaris/socksys.c @@ -199,6 +199,5 @@ int __init init_socksys(void) void __exit cleanup_socksys(void) { - if (unregister_chrdev(30, "socksys")) - printk ("Couldn't unregister socksys character device\n"); + unregister_chrdev(30, "socksys"); } diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c index 83c7258d358..6005b522577 100644 --- a/drivers/char/ip2/ip2main.c +++ b/drivers/char/ip2/ip2main.c @@ -425,9 +425,7 @@ cleanup_module(void) printk(KERN_ERR "IP2: failed to unregister tty driver (%d)\n", err); } put_tty_driver(ip2_tty_driver); - if ( ( err = unregister_chrdev ( IP2_IPL_MAJOR, pcIpl ) ) ) { - printk(KERN_ERR "IP2: failed to unregister IPL driver (%d)\n", err); - } + unregister_chrdev(IP2_IPL_MAJOR, pcIpl); remove_proc_entry("ip2mem", &proc_root); // free memory diff --git a/drivers/char/mbcs.c b/drivers/char/mbcs.c index 57f9115a456..3daf5e0a27e 100644 --- a/drivers/char/mbcs.c +++ b/drivers/char/mbcs.c @@ -816,12 +816,7 @@ struct cx_drv mbcs_driver = { static void __exit mbcs_exit(void) { - int rv; - - rv = unregister_chrdev(mbcs_major, DEVICE_NAME); - if (rv < 0) - DBG(KERN_ALERT "Error in unregister_chrdev: %d\n", rv); - + unregister_chrdev(mbcs_major, DEVICE_NAME); cx_driver_unregister(&mbcs_driver); } diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c index 93d0bb8b4c0..4a80b2f864e 100644 --- a/drivers/char/stallion.c +++ b/drivers/char/stallion.c @@ -4795,7 +4795,6 @@ static void __exit stallion_module_exit(void) { struct stlbrd *brdp; unsigned int i, j; - int retval; pr_debug("cleanup_module()\n"); @@ -4818,9 +4817,7 @@ static void __exit stallion_module_exit(void) for (i = 0; i < 4; i++) class_device_destroy(stallion_class, MKDEV(STL_SIOMEMMAJOR, i)); - if ((retval = unregister_chrdev(STL_SIOMEMMAJOR, "staliomem"))) - printk("STALLION: failed to un-register serial memory device, " - "errno=%d\n", -retval); + unregister_chrdev(STL_SIOMEMMAJOR, "staliomem"); class_destroy(stallion_class); pci_unregister_driver(&stl_pcidriver); diff --git a/drivers/char/viotape.c b/drivers/char/viotape.c index db57277117b..e12275df6ea 100644 --- a/drivers/char/viotape.c +++ b/drivers/char/viotape.c @@ -1098,15 +1098,10 @@ static int chg_state(int index, unsigned char new_state, struct file *file) /* Cleanup */ static void __exit viotap_exit(void) { - int ret; - remove_proc_entry("iSeries/viotape", NULL); vio_unregister_driver(&viotape_driver); class_destroy(tape_class); - ret = unregister_chrdev(VIOTAPE_MAJOR, "viotape"); - if (ret < 0) - printk(VIOTAPE_KERN_WARN "Error unregistering device: %d\n", - ret); + unregister_chrdev(VIOTAPE_MAJOR, "viotape"); if (viotape_unitinfo) dma_free_coherent(iSeries_vio_dev, sizeof(viotape_unitinfo[0]) * VIOTAPE_MAX_TAPE, diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c index 3ef0092dc09..ef3325b6923 100644 --- a/drivers/net/ppp_generic.c +++ b/drivers/net/ppp_generic.c @@ -2684,8 +2684,7 @@ static void __exit ppp_cleanup(void) if (atomic_read(&ppp_unit_count) || atomic_read(&channel_count)) printk(KERN_ERR "PPP: removing module but units remain!\n"); cardmap_destroy(&all_ppp_units); - if (unregister_chrdev(PPP_MAJOR, "ppp") != 0) - printk(KERN_ERR "PPP: failed to unregister PPP device\n"); + unregister_chrdev(PPP_MAJOR, "ppp"); device_destroy(ppp_class, MKDEV(PPP_MAJOR, 0)); class_destroy(ppp_class); } diff --git a/sound/core/sound.c b/sound/core/sound.c index 70600df94d6..8dc7a3b32b9 100644 --- a/sound/core/sound.c +++ b/sound/core/sound.c @@ -446,8 +446,7 @@ static void __exit alsa_sound_exit(void) { snd_info_minor_unregister(); snd_info_done(); - if (unregister_chrdev(major, "alsa") != 0) - snd_printk(KERN_ERR "unable to unregister major device number %d\n", major); + unregister_chrdev(major, "alsa"); } module_init(alsa_sound_init) -- 2.41.1