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libkmod: Avoid calling syscall() with -1

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At least in qemu 1.4.1 for vexpress/arm-cortexa9, this resulted in an
illegal instruction error. Solve that by returning an error when
__NR_finit_module is -1.
This commit is contained in:
Jan Luebbe 2013-05-02 16:47:12 +02:00 committed by Lucas De Marchi
parent 03f7dfb868
commit 5eac795b8b
1 changed files with 7 additions and 0 deletions
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7
libkmod/missing.h
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@ -20,8 +20,15 @@
#endif
#ifndef HAVE_FINIT_MODULE
#include <errno.h>
static inline int finit_module(int fd, const char *uargs, int flags)
{
if (__NR_finit_module == -1) {
errno = ENOSYS;
return -1;
}
return syscall(__NR_finit_module, fd, uargs, flags);
}
#endif