From: Michael Walle Date: Mon, 29 Jul 2024 21:36:57 +0000 (+0200) Subject: boot: android: fix booting without a ramdisk X-Git-Url: http://git.dujemihanovic.xyz/%22http:/www.sics.se/static/git-logo.png?a=commitdiff_plain;h=6509c3fe1c7dddf1d598a9fd8234ed760b3a428b;p=u-boot.git boot: android: fix booting without a ramdisk android_image_get_ramdisk() will return an error if there is no ramdisk. Using the android image without a ramdisk worked until commit 1ce8e10f3b4b ("image: Fix up ANDROID_BOOT_IMAGE ramdisk code") because the return code wasn't checked until then. Return -ENOENT in case there is no ramdisk and translate that into -ENOPKG in the calling code, which will then indicate "no ramdisk" to its caller (boot_get_ramdisk()). This way, we can get rid of the "*rd_data = *rd_len = 0;" in the error path, too. With this, I'm able to boot a linux kernel using fastboot again: fastboot --base 0x41000000 --header-version 2 --dtb /path/to/dtb \ --cmdline "root=/dev/mmcblk0p1 rootwait" boot path/to/Image Signed-off-by: Michael Walle Reviewed-by: Mattijs Korpershoek Reviewed-by: Simon Glass Link: https://lore.kernel.org/r/20240729213657.2550935-1-mwalle@kernel.org Signed-off-by: Mattijs Korpershoek --- diff --git a/boot/image-android.c b/boot/image-android.c index 09c7a44e05..774565fd1f 100644 --- a/boot/image-android.c +++ b/boot/image-android.c @@ -393,10 +393,9 @@ int android_image_get_ramdisk(const void *hdr, const void *vendor_boot_img, if (!android_image_get_data(hdr, vendor_boot_img, &img_data)) return -EINVAL; - if (!img_data.ramdisk_size) { - *rd_data = *rd_len = 0; - return -1; - } + if (!img_data.ramdisk_size) + return -ENOENT; + if (img_data.header_version > 2) { ramdisk_ptr = img_data.ramdisk_addr; memcpy((void *)(ramdisk_ptr), (void *)img_data.vendor_ramdisk_ptr, diff --git a/boot/image-board.c b/boot/image-board.c index f212401304..eca1b1d2bf 100644 --- a/boot/image-board.c +++ b/boot/image-board.c @@ -427,7 +427,9 @@ static int select_ramdisk(struct bootm_headers *images, const char *select, u8 a unmap_sysmem(ptr); } - if (ret) + if (ret == -ENOENT) + return -ENOPKG; + else if (ret) return ret; done = true; } diff --git a/include/image.h b/include/image.h index dd4042d1bd..2ab1707528 100644 --- a/include/image.h +++ b/include/image.h @@ -1858,7 +1858,7 @@ int android_image_get_kernel(const void *hdr, * @vendor_boot_img : Pointer to vendor boot image header * @rd_data: Pointer to a ulong variable, will hold ramdisk address * @rd_len: Pointer to a ulong variable, will hold ramdisk length - * Return: 0 if succeeded, -1 if ramdisk size is 0 + * Return: 0 if OK, -ENOPKG if no ramdisk, -EINVAL if invalid image */ int android_image_get_ramdisk(const void *hdr, const void *vendor_boot_img, ulong *rd_data, ulong *rd_len);