From 850d80a2d8682999b5aafa361ae239838c8636c2 Mon Sep 17 00:00:00 2001 From: Wambui Karuga Date: Fri, 11 Oct 2019 10:20:44 +0300 Subject: [PATCH] staging: isdn: remove assignment in if conditionals Remove variable assignment in if statements in drivers/staging/isdn/avm/b1.c. Issues reported by checkpatch.pl as: ERROR: do not use assignment in if condition Also refactor code around some if statements to remove comparisons to NULL and unnecessary braces in single statement blocks. Signed-off-by: Wambui Karuga Link: https://lore.kernel.org/r/20191011072044.7022-1-wambui.karugax@gmail.com Signed-off-by: Greg Kroah-Hartman --- drivers/staging/isdn/avm/b1.c | 41 ++++++++++++++++++++++++++++------------- 1 file changed, 28 insertions(+), 13 deletions(-) diff --git a/drivers/staging/isdn/avm/b1.c b/drivers/staging/isdn/avm/b1.c index 40ca1e8..32ec8cf 100644 --- a/drivers/staging/isdn/avm/b1.c +++ b/drivers/staging/isdn/avm/b1.c @@ -261,9 +261,10 @@ int b1_loaded(avmcard *card) b1_put_byte(base, SEND_POLL); for (stop = jiffies + tout * HZ; time_before(jiffies, stop);) { if (b1_rx_full(base)) { - if ((ans = b1_get_byte(base)) == RECEIVE_POLL) { + ans = b1_get_byte(base); + if (ans == RECEIVE_POLL) return 1; - } + printk(KERN_ERR "%s: b1_loaded: got 0x%x, firmware not running\n", card->name, ans); return 0; @@ -284,8 +285,9 @@ int b1_load_firmware(struct capi_ctr *ctrl, capiloaddata *data) int retval; b1_reset(port); + retval = b1_load_t4file(card, &data->firmware); - if ((retval = b1_load_t4file(card, &data->firmware))) { + if (retval) { b1_reset(port); printk(KERN_ERR "%s: failed to load t4file!!\n", card->name); @@ -295,7 +297,8 @@ int b1_load_firmware(struct capi_ctr *ctrl, capiloaddata *data) b1_disable_irq(port); if (data->configuration.len > 0 && data->configuration.data) { - if ((retval = b1_load_config(card, &data->configuration))) { + retval = b1_load_config(card, &data->configuration); + if (retval) { b1_reset(port); printk(KERN_ERR "%s: failed to load config!!\n", card->name); @@ -525,7 +528,9 @@ irqreturn_t b1_interrupt(int interrupt, void *devptr) MsgLen = 30; CAPIMSG_SETLEN(card->msgbuf, 30); } - if (!(skb = alloc_skb(DataB3Len + MsgLen, GFP_ATOMIC))) { + + skb = alloc_skb(DataB3Len + MsgLen, GFP_ATOMIC); + if (!skb) { printk(KERN_ERR "%s: incoming packet dropped\n", card->name); } else { @@ -539,7 +544,9 @@ irqreturn_t b1_interrupt(int interrupt, void *devptr) ApplId = (unsigned) b1_get_word(card->port); MsgLen = b1_get_slice(card->port, card->msgbuf); - if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) { + skb = alloc_skb(MsgLen, GFP_ATOMIC); + + if (!skb) { printk(KERN_ERR "%s: incoming packet dropped\n", card->name); spin_unlock_irqrestore(&card->lock, flags); @@ -663,11 +670,17 @@ int b1_proc_show(struct seq_file *m, void *v) seq_printf(m, "%-16s %s\n", "type", s); if (card->cardtype == avm_t1isa) seq_printf(m, "%-16s %d\n", "cardnr", card->cardnr); - if ((s = cinfo->version[VER_DRIVER]) != NULL) + + s = cinfo->version[VER_DRIVER]; + if (s) seq_printf(m, "%-16s %s\n", "ver_driver", s); - if ((s = cinfo->version[VER_CARDTYPE]) != NULL) + + s = cinfo->version[VER_CARDTYPE]; + if (s) seq_printf(m, "%-16s %s\n", "ver_cardtype", s); - if ((s = cinfo->version[VER_SERIAL]) != NULL) + + s = cinfo->version[VER_SERIAL]; + if (s) seq_printf(m, "%-16s %s\n", "ver_serial", s); if (card->cardtype != avm_m1) { @@ -784,13 +797,15 @@ static int __init b1_init(void) char *p; char rev[32]; - if ((p = strchr(revision, ':')) != NULL && p[1]) { + p = strchr(revision, ':'); + if (p && p[1]) { strlcpy(rev, p + 2, 32); - if ((p = strchr(rev, '$')) != NULL && p > rev) + p = strchr(rev, '$'); + if (p && p > rev) *(p - 1) = 0; - } else + } else { strcpy(rev, "1.0"); - + } printk(KERN_INFO "b1: revision %s\n", rev); return 0; -- 2.7.4