#include <linux/atomic.h>
#include <linux/debugfs.h>
#include <linux/notifier.h>

struct notifier_err_inject_action {
	unsigned long val;
	int error;
	const char *name;
};

#define NOTIFIER_ERR_INJECT_ACTION(action)	\
	.name = #action, .val = (action),

struct notifier_err_inject {
	struct notifier_block nb;
	struct notifier_err_inject_action actions[];
	/* The last slot must be terminated with zero sentinel */
};

extern struct dentry *notifier_err_inject_dir;

extern struct dentry *notifier_err_inject_init(const char *name,
		struct dentry *parent, struct notifier_err_inject *err_inject,
		int priority);
ody>
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<tr><th>author</th><td>Stanislaw Gruszka &lt;sgruszka@redhat.com&gt;</td><td class='right'>2017-01-29 12:40:52 +0100</td></tr>
<tr><th>committer</th><td>Kalle Valo &lt;kvalo@codeaurora.org&gt;</td><td class='right'>2017-01-31 09:08:52 +0200</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/pmu-events/jevents.h?h=nds-private-remove&amp;id=33e962c8871f015f5c8978384553dddcf5b81b22'>33e962c8871f015f5c8978384553dddcf5b81b22</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/perf/pmu-events/jevents.h?id=33e962c8871f015f5c8978384553dddcf5b81b22'>patch</a>)</td></tr>
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<div class='commit-subject'>rt2x00: fix clk_get call</div><div class='commit-msg'>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 &lt;nbd@nbd.name&gt;
Fixes: 34db70b92fae ("rt2x00: add copy of clk for soc devices")
Signed-off-by: Stanislaw Gruszka &lt;sgruszka@redhat.com&gt;
Signed-off-by: Kalle Valo &lt;kvalo@codeaurora.org&gt;
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