main/irqbalance: fix segfault on aarch64

main/irqbalance/APKBUILD

@@ -12,6 +12,7 @@ subpackages="$pkgname-doc $pkgname-openrc"
 source="$pkgname-$pkgver.tar.gz::https://github.com/Irqbalance/irqbalance/archive/v$pkgver.tar.gz
 	irqbalance.confd
 	irqbalance.initd
+	aarch64-sigsegv.patch
 	"
 
 
@@ -45,4 +46,5 @@ sha512sums="
 878977da5eff18e53bdceeaa4aca952f73ba8b03eb028cf176816af971ffc65f0b1f1bb3a68e3a2502491895cc2b9438652dc97d5696232bb2f64860109e9a24  irqbalance-1.9.0.tar.gz
 90e7ed187b4dccd6f6c4383ba54d6e1aed1645240e44aaf02db1b70b56594b1a828644d671e6db91212417981b1d5e53d1ecfd4b366496dbcb484d1064d7d24c  irqbalance.confd
 ba4933d35d17c0eaec8026305411605cadfddaba28e5dbbfb55f8d4311feb04db8dc8853a3e63be55ee8ab4b0356658b2f3eba60fa0b4e59effdd1db94a255c2  irqbalance.initd
+14536d410a2d9606ee7af3af55f17f381d3aab4badd5e0ec556e244bef857a1ad94800e6ae2788b570cdd51caf9736ff30b46c400417b39ce5e18372222e5413  aarch64-sigsegv.patch
 "

main/irqbalance/aarch64-sigsegv.patch

+--- a/procinterrupts.c
++++ b/procinterrupts.c
+@@ -178,7 +178,7 @@
+ 	}
+ 
+ #ifdef AARCH64
+-	if (strlen(savedptr) > 0) {
++	if (savedptr && strlen(savedptr) > 0) {
+ 		snprintf(irq_fullname, PATH_MAX, "%s %s", last_token, savedptr);
+ 		tmp = strchr(irq_fullname, '\n');
+ 		if (tmp)