From 78c6b922e21849ed8a2d3af4ca55c84c3d1ac185 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Fri, 13 Nov 2009 16:26:39 -0800 Subject: [PATCH] ETM: simplify ETM initialization code paths Return NULL from etm_build_reg_cache() not ERROR_OK; and share code on that fault path. Let ETM code handle any tracking of its cache -- not callers. Signed-off-by: David Brownell --- src/target/arm7tdmi.c | 8 +++----- src/target/arm9tdmi.c | 8 +++----- src/target/etm.c | 16 ++++++++-------- 3 files changed, 14 insertions(+), 18 deletions(-) diff --git a/src/target/arm7tdmi.c b/src/target/arm7tdmi.c index 029dce1c3d..c7bbd77627 100644 --- a/src/target/arm7tdmi.c +++ b/src/target/arm7tdmi.c @@ -664,12 +664,10 @@ int arm7tdmi_examine(struct target *target) arm7_9->eice_cache = (*cache_p); if (arm7_9->armv4_5_common.etm) - { - struct arm_jtag *jtag_info = &arm7_9->jtag_info; (*cache_p)->next = etm_build_reg_cache(target, - jtag_info, arm7_9->armv4_5_common.etm); - arm7_9->armv4_5_common.etm->reg_cache = (*cache_p)->next; - } + &arm7_9->jtag_info, + arm7_9->armv4_5_common.etm); + target_set_examined(target); } if ((retval = embeddedice_setup(target)) != ERROR_OK) diff --git a/src/target/arm9tdmi.c b/src/target/arm9tdmi.c index 147c0903e0..fc110733e0 100644 --- a/src/target/arm9tdmi.c +++ b/src/target/arm9tdmi.c @@ -759,12 +759,10 @@ int arm9tdmi_examine(struct target *target) arm7_9->eice_cache = (*cache_p); if (arm7_9->armv4_5_common.etm) - { - struct arm_jtag *jtag_info = &arm7_9->jtag_info; (*cache_p)->next = etm_build_reg_cache(target, - jtag_info, arm7_9->armv4_5_common.etm); - arm7_9->armv4_5_common.etm->reg_cache = (*cache_p)->next; - } + &arm7_9->jtag_info, + arm7_9->armv4_5_common.etm); + target_set_examined(target); } if ((retval = embeddedice_setup(target)) != ERROR_OK) diff --git a/src/target/etm.c b/src/target/etm.c index 43158b5667..4c94e6bf05 100644 --- a/src/target/etm.c +++ b/src/target/etm.c @@ -349,10 +349,7 @@ struct reg_cache *etm_build_reg_cache(struct target *target, break; default: LOG_WARNING("Bad ETMv1 protocol %d", config >> 28); - free(reg_cache); - free(reg_list); - free(arch_info); - return ERROR_OK; + goto fail; } } etm_ctx->bcd_vers = bcd_vers; @@ -396,10 +393,7 @@ struct reg_cache *etm_build_reg_cache(struct target *target, if (!etb) { LOG_ERROR("etb selected as etm capture driver, but no ETB configured"); - free(reg_cache); - free(reg_list); - free(arch_info); - return ERROR_OK; + goto fail; } reg_cache->next = etb_build_reg_cache(etb); @@ -409,6 +403,12 @@ struct reg_cache *etm_build_reg_cache(struct target *target, etm_ctx->reg_cache = reg_cache; return reg_cache; + +fail: + free(reg_cache); + free(reg_list); + free(arch_info); + return NULL; } static int etm_read_reg(struct reg *reg) -- 2.30.2