On Thu, Sep 03, 2015 at 02:21:39PM +0200, Lukasz Majewski wrote: > It is very common that FAT code is using following pattern: > if (disk_{read|write}() < 0) > return -1; > > Up till now the above code was dead, since disk_{read|write) could only > return value >= 0. > As a result some errors from medium layer (i.e. eMMC/SD) were not caught. > > The above behavior was caused by block_{read|write|erase} declared at > struct block_dev_desc (@part.h). It returns unsigned long, where 0 > indicates error and > 0 indicates that medium operation was correct. > > This patch as error regards 0 returned from block_{read|write|erase} > when nr_blocks is grater than zero. Read/Write operation with nr_blocks=0 > should return 0 and hence is not considered as an error. > > Signed-off-by: Lukasz Majewski <l.majew...@samsung.com> > > Test HW: Odroid XU3 - Exynos 5433
Can you pick up Stephen's FAT replacement series and see if it also fixes this problem? Thanks! -- Tom
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