ROMFS: Advance destination buffer pointer when reading from a blockdev
RomFS should advance the destination buffer pointer when reading data from a blockdev source (the data may be split over multiple blocks, each requiring its own sb_read() call). Without this, all the data is copied to the beginning of the output buffer. Signed-off-by: David Howells <dhowells@redhat.com> Tested-by: Michal Simek <monstr@monstr.eu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -120,6 +120,7 @@ static int romfs_blk_read(struct super_block *sb, unsigned long pos,
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return -EIO;
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memcpy(buf, bh->b_data + offset, segment);
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brelse(bh);
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buf += segment;
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buflen -= segment;
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pos += segment;
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}
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