#include #include "subcmd-util.h" #include "sigchain.h" #define SIGCHAIN_MAX_SIGNALS 32 struct sigchain_signal { sigchain_fun *old; int n; int alloc; }; static struct sigchain_signal signals[SIGCHAIN_MAX_SIGNALS]; static void check_signum(int sig) { if (sig < 1 || sig >= SIGCHAIN_MAX_SIGNALS) die("BUG: signal out of range: %d", sig); } static int sigchain_push(int sig, sigchain_fun f) { struct sigchain_signal *s = signals + sig; check_signum(sig); ALLOC_GROW(s->old, s->n + 1, s->alloc); s->old[s->n] = signal(sig, f); if (s->old[s->n] == SIG_ERR) return -1; s->n++; return 0; } int sigchain_pop(int sig) { struct sigchain_signal *s = signals + sig; check_signum(sig); if (s->n < 1) return 0; if (signal(sig, s->old[s->n - 1]) == SIG_ERR) return -1; s->n--; return 0; } void sigchain_push_common(sigchain_fun f) { sigchain_push(SIGINT, f); sigchain_push(SIGHUP, f); sigchain_push(SIGTERM, f); sigchain_push(SIGQUIT, f); sigchain_push(SIGPIPE, f); } /> net-next plumbingsTobias Klauser
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authorVincent <vincent.stehle@laposte.net>2017-01-30 15:06:43 +0100
committerDavid S. Miller <davem@davemloft.net>2017-01-31 13:07:40 -0500
commitc73e44269369e936165f0f9b61f1f09a11dae01c (patch)
treee2188e900ba06302f8ed2746cb07edd3efbc5c35 /net/irda/iriap_event.c
parent040587af31228d82c52267f717c9fcdb65f36335 (diff)
net: thunderx: avoid dereferencing xcv when NULL
This fixes the following smatch and coccinelle warnings: drivers/net/ethernet/cavium/thunder/thunder_xcv.c:119 xcv_setup_link() error: we previously assumed 'xcv' could be null (see line 118) [smatch] drivers/net/ethernet/cavium/thunder/thunder_xcv.c:119:16-20: ERROR: xcv is NULL but dereferenced. [coccinelle] Fixes: 6465859aba1e66a5 ("net: thunderx: Add RGMII interface type support") Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net> Cc: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/irda/iriap_event.c')