rt2x00: fix clk_get call

clk_get() takes two arguments and might return ERR_PTR(), so we
have to nullify pointer on that case, to do not break further call
to clk_get_rate().

Reported-by: Felix Fietkau <nbd@nbd.name>
Fixes: 34db70b92fae ("rt2x00: add copy of clk for soc devices")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

path: root/proc.h

#ifndef PROC_H
#define PROC_H

#include <stdlib.h>

extern void cpu_affinity(int cpu);
extern int set_proc_prio(int prio);
extern int set_sched_status(int policy, int priority);
extern ssize_t proc_get_cmdline(unsigned int pid, char *cmdline, size_t len);
extern int proc_exec(const char *proc, char *const argv[]);

#endif /* PROC_H */