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f717d798be
Currently, when decompressing a gzip-compressed image during bootm, a generic error such as "inflate() returned -5" is shown when the buffer is too small. However, it is not immediately clear that this is caused by CONFIG_SYS_BOOTM_LEN being too small. This patch improves error handling by: - Detecting Z_BUF_ERROR (-5) returned from the inflate() call - Suggesting the user to increase CONFIG_SYS_BOOTM_LEN when applicable - Preserving the original return code from zunzip() instead of overwriting it with -1 By providing clearer hints when decompression fails due to insufficient buffer size, this change helps users diagnose and fix boot failures more easily. Signed-off-by: Aristo Chen <aristo.chen@canonical.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>