powerpc/papr_scm: use dev_get_drvdata

Eliminate direct accesses to the driver_data field.

Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1653988790-19999-1-git-send-email-baihaowen@meizu.com

diff --git a/arch/powerpc/platforms/pseries/papr_scm.c b/arch/powerpc/platforms/pseries/papr_scm.c
index 82cae08..69f21d3 100644 (file)
--- a/arch/powerpc/platforms/pseries/papr_scm.c
+++ b/arch/powerpc/platforms/pseries/papr_scm.c
@@ -354,7 +354,7 @@ static int papr_scm_pmu_get_value(struct perf_event *event, struct device *dev,
 {
        struct papr_scm_perf_stat *stat;
        struct papr_scm_perf_stats *stats;
-       struct papr_scm_priv *p = (struct papr_scm_priv *)dev->driver_data;
+       struct papr_scm_priv *p = dev_get_drvdata(dev);
        int rc, size;
 
        /* Allocate request buffer enough to hold single performance stat */