From bc501c551ca28dcac01627b6c390e2ee6bbb1179 Mon Sep 17 00:00:00 2001 From: Peter Huewe Date: Fri, 15 Feb 2013 15:22:26 +0100 Subject: [PATCH] staging/ozwpan: Fix NULL vs zero in ozcdev.c (sparse warning) This patch fixes the warning "Using plain integer as NULL pointer", generated by sparse, by replacing the offending 0s with NULL. If the initialization with NULL was unnecessary (due to unconditional assignment before first use) it was removed. Signed-off-by: Peter Huewe Signed-off-by: Greg Kroah-Hartman --- drivers/staging/ozwpan/ozcdev.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/drivers/staging/ozwpan/ozcdev.c b/drivers/staging/ozwpan/ozcdev.c index 64913aeb0bac..a38716ffa503 100644 --- a/drivers/staging/ozwpan/ozcdev.c +++ b/drivers/staging/ozwpan/ozcdev.c @@ -97,7 +97,7 @@ ssize_t oz_cdev_read(struct file *filp, char __user *buf, size_t count, int ix; struct oz_pd *pd; - struct oz_serial_ctx *ctx = 0; + struct oz_serial_ctx *ctx; spin_lock_bh(&g_cdev.lock); pd = g_cdev.active_pd; @@ -147,7 +147,7 @@ ssize_t oz_cdev_write(struct file *filp, const char __user *buf, size_t count, { struct oz_pd *pd; struct oz_elt_buf *eb; - struct oz_elt_info *ei = 0; + struct oz_elt_info *ei; struct oz_elt *elt; struct oz_app_hdr *app_hdr; struct oz_serial_ctx *ctx; @@ -182,7 +182,7 @@ ssize_t oz_cdev_write(struct file *filp, const char __user *buf, size_t count, ctx->tx_seq_num = 1; spin_lock(&eb->lock); if (oz_queue_elt_info(eb, 0, 0, ei) == 0) - ei = 0; + ei = NULL; spin_unlock(&eb->lock); } spin_unlock_bh(&pd->app_lock[OZ_APPID_USB-1]); @@ -217,7 +217,7 @@ static int oz_set_active_pd(u8 *addr) if (is_zero_ether_addr(addr)) { spin_lock_bh(&g_cdev.lock); pd = g_cdev.active_pd; - g_cdev.active_pd = 0; + g_cdev.active_pd = NULL; memset(g_cdev.active_addr, 0, sizeof(g_cdev.active_addr)); spin_unlock_bh(&g_cdev.lock); @@ -385,7 +385,7 @@ int oz_cdev_deregister(void) */ int oz_cdev_init(void) { - oz_event_log(OZ_EVT_SERVICE, 1, OZ_APPID_SERIAL, 0, 0); + oz_event_log(OZ_EVT_SERVICE, 1, OZ_APPID_SERIAL, NULL, 0); oz_app_enable(OZ_APPID_SERIAL, 1); return 0; } @@ -394,7 +394,7 @@ int oz_cdev_init(void) */ void oz_cdev_term(void) { - oz_event_log(OZ_EVT_SERVICE, 2, OZ_APPID_SERIAL, 0, 0); + oz_event_log(OZ_EVT_SERVICE, 2, OZ_APPID_SERIAL, NULL, 0); oz_app_enable(OZ_APPID_SERIAL, 0); } /*------------------------------------------------------------------------------ @@ -403,8 +403,8 @@ void oz_cdev_term(void) int oz_cdev_start(struct oz_pd *pd, int resume) { struct oz_serial_ctx *ctx; - struct oz_serial_ctx *old_ctx = 0; - oz_event_log(OZ_EVT_SERVICE, 3, OZ_APPID_SERIAL, 0, resume); + struct oz_serial_ctx *old_ctx; + oz_event_log(OZ_EVT_SERVICE, 3, OZ_APPID_SERIAL, NULL, resume); if (resume) { oz_trace("Serial service resumed.\n"); return 0; @@ -440,22 +440,22 @@ int oz_cdev_start(struct oz_pd *pd, int resume) void oz_cdev_stop(struct oz_pd *pd, int pause) { struct oz_serial_ctx *ctx; - oz_event_log(OZ_EVT_SERVICE, 4, OZ_APPID_SERIAL, 0, pause); + oz_event_log(OZ_EVT_SERVICE, 4, OZ_APPID_SERIAL, NULL, pause); if (pause) { oz_trace("Serial service paused.\n"); return; } spin_lock_bh(&pd->app_lock[OZ_APPID_SERIAL-1]); ctx = (struct oz_serial_ctx *)pd->app_ctx[OZ_APPID_SERIAL-1]; - pd->app_ctx[OZ_APPID_SERIAL-1] = 0; + pd->app_ctx[OZ_APPID_SERIAL-1] = NULL; spin_unlock_bh(&pd->app_lock[OZ_APPID_SERIAL-1]); if (ctx) oz_cdev_release_ctx(ctx); spin_lock(&g_cdev.lock); if (pd == g_cdev.active_pd) - g_cdev.active_pd = 0; + g_cdev.active_pd = NULL; else - pd = 0; + pd = NULL; spin_unlock(&g_cdev.lock); if (pd) { oz_pd_put(pd); -- 2.45.2