Merge "msm: ipa: Ignore empty ipa config file" (a933e780) · Commits · e / devices / android_kernel_xiaomi_nabu

drivers/platform/msm/ipa/ipa_v3/ipa.c

+14 −0

Original line number	Diff line number	Diff line
		@@ -41,6 +41,7 @@
		#include <asm/cacheflush.h>
		#include <linux/soc/qcom/smem_state.h>
		#include <linux/of_irq.h>
		#include <linux/ctype.h>

		#ifdef CONFIG_ARM64

		@@ -6083,6 +6084,8 @@ static ssize_t ipa3_write(struct file file, const char __user buf,

		char dbg_buff[32] = { 0 };

		int i = 0;

		if (sizeof(dbg_buff) < count + 1)
		return -EFAULT;

		@@ -6102,6 +6105,17 @@ static ssize_t ipa3_write(struct file file, const char __user buf,
		if (ipa3_is_ready())
		return count;

		/Ignore empty ipa_config file/
		for (i = 0 ; i < count ; ++i) {
		if (!isspace(dbg_buff[i]))
		break;
		}

		if (i == count) {
		IPADBG("Empty ipa_config file\n");
		return count;
		}

		/* Check MHI configuration on MDM devices */
		if (!ipa3_is_msm_device()) {