[PATCH V1 05/12] spmi: pmic-arb: fix memory allocation for mapping_table

From: Kiran Gunda
Date: Thu Jul 20 2017 - 03:32:53 EST


Allocate the correct memory size (max_pmic_peripherals) for the
mapping_table that holds the apid to ppid mapping. Also use a local
variable for mapping_table for better alignment of the code.

Signed-off-by: Kiran Gunda <kgunda@xxxxxxxxxxxxxx>
---
drivers/spmi/spmi-pmic-arb.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index 0c98495..b32b5b0 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -929,6 +929,7 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
struct spmi_controller *ctrl;
struct resource *res;
void __iomem *core;
+ u32 *mapping_table;
u32 channel, ee, hw_ver;
int err;

@@ -1038,16 +1039,14 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
}

pmic_arb->ee = ee;
-
- pmic_arb->mapping_table = devm_kcalloc(&ctrl->dev,
- PMIC_ARB_MAX_PERIPHS - 1,
- sizeof(*pmic_arb->mapping_table),
- GFP_KERNEL);
- if (!pmic_arb->mapping_table) {
+ mapping_table = devm_kcalloc(&ctrl->dev, PMIC_ARB_MAX_PERIPHS,
+ sizeof(*mapping_table), GFP_KERNEL);
+ if (!mapping_table) {
err = -ENOMEM;
goto err_put_ctrl;
}

+ pmic_arb->mapping_table = mapping_table;
/* Initialize max_apid/min_apid to the opposite bounds, during
* the irq domain translation, we are sure to update these */
pmic_arb->max_apid = 0;
--
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