From c32c8dc8af9e971f91feaee145f1e8d6f114cad6 Mon Sep 17 00:00:00 2001 From: Nico Huber Date: Sun, 16 Jun 2019 19:46:46 +0200 Subject: layout: Introduce flashrom_layout_new() It initializes an empty layout. Currently the maximum number of entries has to be specified, which will vanish once we use dynamic allocation per entry. We replace the two special cases `single_layout` and `ich_layout` with dynamically allocated layouts. As a result, we have to take care to release the `default_layout` in a flashctx once we are done with it. Change-Id: I2ae7246493ff592e631cce924777925c7825e398 Signed-off-by: Nico Huber Reviewed-on: https://review.coreboot.org/c/flashrom/+/33543 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan Reviewed-by: Angel Pons --- libflashrom.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) (limited to 'libflashrom.c') diff --git a/libflashrom.c b/libflashrom.c index c5c4c8957..dd5cb002e 100644 --- a/libflashrom.c +++ b/libflashrom.c @@ -330,13 +330,14 @@ int flashrom_flash_probe(struct flashrom_flashctx **const flashctx, ret = 0; /* We found one chip, now check that there is no second match. */ if (probe_flash(®istered_masters[i], flash_idx + 1, &second_flashctx, 0) != -1) { + flashrom_layout_release(second_flashctx.default_layout); ret = 3; break; } } } if (ret) { - free(*flashctx); + flashrom_flash_release(*flashctx); *flashctx = NULL; } return ret; @@ -360,6 +361,7 @@ size_t flashrom_flash_getsize(const struct flashrom_flashctx *const flashctx) */ void flashrom_flash_release(struct flashrom_flashctx *const flashctx) { + flashrom_layout_release(flashctx->default_layout); free(flashctx); } @@ -435,16 +437,10 @@ int flashrom_layout_read_from_ifd(struct flashrom_layout **const layout, struct #ifndef __FLASHROM_LITTLE_ENDIAN__ return 6; #else - struct ich_layout dump_layout; + struct flashrom_layout *dump_layout, *chip_layout; int ret = 1; void *const desc = malloc(0x1000); - struct ich_layout *const chip_layout = malloc(sizeof(*chip_layout)); - if (!desc || !chip_layout) { - msg_gerr("Out of memory!\n"); - goto _free_ret; - } - if (prepare_flash_access(flashctx, true, false, false, false)) goto _free_ret; @@ -457,7 +453,7 @@ int flashrom_layout_read_from_ifd(struct flashrom_layout **const layout, struct } msg_cinfo("done.\n"); - if (layout_from_ich_descriptors(chip_layout, desc, 0x1000)) { + if (layout_from_ich_descriptors(&chip_layout, desc, 0x1000)) { msg_cerr("Couldn't parse the descriptor!\n"); ret = 3; goto _finalize_ret; @@ -470,12 +466,13 @@ int flashrom_layout_read_from_ifd(struct flashrom_layout **const layout, struct goto _finalize_ret; } - const struct romentry *chip_entry = layout_next(&chip_layout->base, NULL); - const struct romentry *dump_entry = layout_next(&dump_layout.base, NULL); + const struct romentry *chip_entry = layout_next(chip_layout, NULL); + const struct romentry *dump_entry = layout_next(dump_layout, NULL); while (chip_entry && dump_entry && !memcmp(chip_entry, dump_entry, sizeof(*chip_entry))) { - chip_entry = layout_next(&chip_layout->base, chip_entry); - dump_entry = layout_next(&dump_layout.base, dump_entry); + chip_entry = layout_next(chip_layout, chip_entry); + dump_entry = layout_next(dump_layout, dump_entry); } + flashrom_layout_release(dump_layout); if (chip_entry || dump_entry) { msg_cerr("Descriptors don't match!\n"); ret = 5; @@ -490,7 +487,7 @@ _finalize_ret: finalize_flash_access(flashctx); _free_ret: if (ret) - free(chip_layout); + flashrom_layout_release(chip_layout); free(desc); return ret; #endif -- cgit v1.2.3