From 3337b291442e31b1db0ff5975f74fec7d9741794 Mon Sep 17 00:00:00 2001 From: Anastasiia Lukianenko Date: Fri, 21 Aug 2020 12:10:04 +0300 Subject: [PATCH] xen: Code style conformity Cleaning up the following: ERROR: do not use assignment in if condition #281: FILE: drivers/xen/pvblock.c:260: + if ((err = xenbus_switch_state(XBT_NIL, nodename, CHECK:COMPARISON_TO_NULL: Comparison to NULL could be written "err" #52: FILE: drivers/xen/pvblock.c:298: + if (err != NULL) { ERROR: do not use assignment in if condition #176: FILE: drivers/xen/gnttab.c:103: + if ((flags = nflags) & (GTF_reading | GTF_writing)) { WARNING: Missing or malformed SPDX-License-Identifier tag in line 1 #329: FILE: include/xen/gnttab.h:1: +/* WARNING: Misplaced SPDX-License-Identifier tag - use line 1 instead #330: FILE: include/xen/gnttab.h:2: + * SPDX-License-Identifier: GPL-2.0 ERROR: do not use assignment in if condition #630: FILE: lib/sscanf.c:558: + if ((n = inr) < width) { Signed-off-by: Anastasiia Lukianenko Reviewed-by: Simon Glass --- drivers/xen/gnttab.c | 3 ++- drivers/xen/pvblock.c | 12 ++++++------ include/xen/gnttab.h | 3 +-- lib/sscanf.c | 3 ++- 4 files changed, 11 insertions(+), 10 deletions(-) diff --git a/drivers/xen/gnttab.c b/drivers/xen/gnttab.c index becf7a79fb..9bf1091ab3 100644 --- a/drivers/xen/gnttab.c +++ b/drivers/xen/gnttab.c @@ -100,7 +100,8 @@ int gnttab_end_access(grant_ref_t ref) nflags = gnttab_table[ref].flags; do { - if ((flags = nflags) & (GTF_reading | GTF_writing)) { + flags = nflags; + if ((flags) & (GTF_reading | GTF_writing)) { printf("WARNING: g.e. still in use! (%x)\n", flags); return 0; } diff --git a/drivers/xen/pvblock.c b/drivers/xen/pvblock.c index 76e82fbf41..1b3325bbe2 100644 --- a/drivers/xen/pvblock.c +++ b/drivers/xen/pvblock.c @@ -294,8 +294,8 @@ static void shutdown_blkfront(struct blkfront_dev *dev) snprintf(path, sizeof(path), "%s/state", dev->backend); snprintf(nodename, sizeof(nodename), "%s/state", dev->nodename); - if ((err = xenbus_switch_state(XBT_NIL, nodename, - XenbusStateClosing)) != NULL) { + err = xenbus_switch_state(XBT_NIL, nodename, XenbusStateClosing); + if (err) { printf("%s: error changing state to %d: %s\n", __func__, XenbusStateClosing, err); goto close; @@ -306,8 +306,8 @@ static void shutdown_blkfront(struct blkfront_dev *dev) err = xenbus_wait_for_state_change(path, &state); free(err); - if ((err = xenbus_switch_state(XBT_NIL, nodename, - XenbusStateClosed)) != NULL) { + err = xenbus_switch_state(XBT_NIL, nodename, XenbusStateClosed); + if (err) { printf("%s: error changing state to %d: %s\n", __func__, XenbusStateClosed, err); goto close; @@ -319,8 +319,8 @@ static void shutdown_blkfront(struct blkfront_dev *dev) free(err); } - if ((err = xenbus_switch_state(XBT_NIL, nodename, - XenbusStateInitialising)) != NULL) { + err = xenbus_switch_state(XBT_NIL, nodename, XenbusStateInitialising); + if (err) { printf("%s: error changing state to %d: %s\n", __func__, XenbusStateInitialising, err); goto close; diff --git a/include/xen/gnttab.h b/include/xen/gnttab.h index db1d5361fe..db615004aa 100644 --- a/include/xen/gnttab.h +++ b/include/xen/gnttab.h @@ -1,5 +1,4 @@ -/* - * SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 * * (C) 2006, Steven Smith * (C) 2006, Grzegorz Milos diff --git a/lib/sscanf.c b/lib/sscanf.c index d1e2dc272c..4c35c035fe 100644 --- a/lib/sscanf.c +++ b/lib/sscanf.c @@ -555,7 +555,8 @@ literal: if (flags & SUPPRESS) { size_t sum = 0; - if ((n = inr) < width) { + n = inr; + if (n < width) { sum += n; width -= n; inp += n; -- 2.39.5