From f7845a840c012a18c353640626c7ac2c778cb74e Mon Sep 17 00:00:00 2001 From: Cong Zhang Date: Wed, 3 Aug 2022 11:16:17 +0800 Subject: [PATCH] soc: qcom: Block register minidump region with same name If user register minidump region with same name, return -EEXIST error code. Change-Id: I612a7a4f77fdd80d3b677b2b2b4e4d1221c3395f Signed-off-by: Cong Zhang --- drivers/soc/qcom/msm_minidump.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/soc/qcom/msm_minidump.c b/drivers/soc/qcom/msm_minidump.c index 478ed10b1ff6..d464b059455c 100644 --- a/drivers/soc/qcom/msm_minidump.c +++ b/drivers/soc/qcom/msm_minidump.c @@ -681,6 +681,11 @@ int msm_minidump_add_region(const struct md_region *entry) md_add_elf_header(entry); /* Ensure that init completes before register region */ } else if (is_rm_minidump && smp_load_acquire(&md_init_done)) { + if (md_rm_entry_num(entry) >= 0) { + printk_deferred("Entry name already exist\n"); + ret = -EEXIST; + goto out; + } ret = md_rm_add_region(entry); if (ret) goto out;