crypto: ccree - fix pm wrongful error reporting

Gilad Ben-Yossef · herbertx · commit cedca59fae58 · 2020-01-22T16:21:10.000+08:00
pm_runtime_get_sync() can return 1 as a valid (none error) return
code. Treat it as such.

Signed-off-by: Gilad Ben-Yossef &lt;gilad@benyossef.com&gt;
Cc: stable@vger.kernel.org # v4.19+
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
diff --git a/drivers/crypto/ccree/cc_pm.c b/drivers/crypto/ccree/cc_pm.c
@@ -85,7 +85,7 @@ int cc_pm_get(struct device *dev)
 	else
 		pm_runtime_get_noresume(dev);
 
-	return rc;
+	return (rc == 1 ? 0 : rc);
 }
 
 int cc_pm_put_suspend(struct device *dev)

Original file line number	Diff line number	Diff line change
`@@ -85,7 +85,7 @@ int cc_pm_get(struct device *dev)`
`85`	`85`	`else`
`86`	`86`	`pm_runtime_get_noresume(dev);`
`87`	`87`
`88`		`- return rc;`
	`88`	`+ return (rc == 1 ? 0 : rc);`
`89`	`89`	`}`
`90`	`90`
`91`	`91`	`int cc_pm_put_suspend(struct device *dev)`