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Commit e06c3efa authored by Prashant Singh's avatar Prashant Singh
Browse files

drm/msm/sde: Add null pointer sanity checks 



Add missing null pointer checks for variables
before referencing them.

Change-Id: I337cb4a199812a4c85cd316da5e265a801253d0b
Signed-off-by: default avatarPrashant Singh <prasin@codeaurora.org>
parent 47d149c3

drivers/gpu/drm/msm/sde/sde_core_irq.c

+7 −4
Original line number Diff line number Diff line 
/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.

/* Copyright (c) 2015-2019, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -497,8 +497,11 @@ void sde_core_irq_preinstall(struct sde_kms *sde_kms) 
	sde_kms->irq_obj.irq_counts = kcalloc(sde_kms->irq_obj.total_irqs,

			sizeof(atomic_t), GFP_KERNEL);

	for (i = 0; i < sde_kms->irq_obj.total_irqs; i++) {

		if (sde_kms->irq_obj.irq_cb_tbl)

			INIT_LIST_HEAD(&sde_kms->irq_obj.irq_cb_tbl[i]);

		if (sde_kms->irq_obj.enable_counts)

			atomic_set(&sde_kms->irq_obj.enable_counts[i], 0);

		if (sde_kms->irq_obj.irq_counts)

			atomic_set(&sde_kms->irq_obj.irq_counts[i], 0);

	}

}