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authorIonela Voinescu <ionela.voinescu@arm.com>2021-01-07 11:17:17 +0000
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2021-01-22 16:28:19 +0100
commit26692cd93265a5d1227da8400f32efb00f57bf83 (patch)
tree92e0cf8b5e0e5de962d245e92e048fdcca093e34
parent1d9b4abefcca19187e219c3132f3b0593992e95e (diff)
downloadlinux-26692cd93265a5d1227da8400f32efb00f57bf83.tar.gz
ACPI: CPPC: initialise vaddr pointers to NULL
Properly initialise vaddr pointers in cpc_read() and cpc_write() to
NULL instead of 0.

This fixes the following sparse warnings:

drivers/acpi/cppc_acpi.c:937:31: warning: Using plain integer as NULL pointer
drivers/acpi/cppc_acpi.c:982:31: warning: Using plain integer as NULL pointer

Signed-off-by: Ionela Voinescu <ionela.voinescu@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--drivers/acpi/cppc_acpi.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c
index fd71020f5d5f..69057fcd2c04 100644
--- a/drivers/acpi/cppc_acpi.c
+++ b/drivers/acpi/cppc_acpi.c
@@ -934,7 +934,7 @@ int __weak cpc_write_ffh(int cpunum, struct cpc_reg *reg, u64 val)
 static int cpc_read(int cpu, struct cpc_register_resource *reg_res, u64 *val)
 {
 	int ret_val = 0;
-	void __iomem *vaddr = 0;
+	void __iomem *vaddr = NULL;
 	int pcc_ss_id = per_cpu(cpu_pcc_subspace_idx, cpu);
 	struct cpc_reg *reg = &reg_res->cpc_entry.reg;
 
@@ -979,7 +979,7 @@ static int cpc_read(int cpu, struct cpc_register_resource *reg_res, u64 *val)
 static int cpc_write(int cpu, struct cpc_register_resource *reg_res, u64 val)
 {
 	int ret_val = 0;
-	void __iomem *vaddr = 0;
+	void __iomem *vaddr = NULL;
 	int pcc_ss_id = per_cpu(cpu_pcc_subspace_idx, cpu);
 	struct cpc_reg *reg = &reg_res->cpc_entry.reg;