OpenWrt – Blame information for rev 3
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Rev | Author | Line No. | Line |
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1 | office | 1 | From: Felix Fietkau <nbd@nbd.name> |
2 | Date: Thu, 22 Feb 2018 11:11:57 +0100 |
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3 | Subject: [PATCH] mtd: spi-nor: allow NOR driver to write fewer bytes than |
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4 | requested |
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5 | |||
6 | The write size can be constrained by the maximum message/transfer size |
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7 | of the SPI controller. Only check for ret = 0 to avoid an infinite loop. |
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8 | |||
9 | Signed-off-by: Felix Fietkau <nbd@nbd.name> |
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10 | --- |
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11 | |||
12 | --- a/drivers/mtd/spi-nor/spi-nor.c |
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13 | +++ b/drivers/mtd/spi-nor/spi-nor.c |
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3 | office | 14 | @@ -1371,7 +1371,7 @@ static int spi_nor_write(struct mtd_info |
1 | office | 15 | |
16 | write_enable(nor); |
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17 | ret = nor->write(nor, addr, page_remain, buf + i); |
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18 | - if (ret < 0) |
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19 | + if (ret <= 0) |
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20 | goto write_err; |
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21 | written = ret; |
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22 | |||
3 | office | 23 | @@ -1380,13 +1380,6 @@ static int spi_nor_write(struct mtd_info |
1 | office | 24 | goto write_err; |
25 | *retlen += written; |
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26 | i += written; |
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27 | - if (written != page_remain) { |
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28 | - dev_err(nor->dev, |
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29 | - "While writing %zu bytes written %zd bytes\n", |
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30 | - page_remain, written); |
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31 | - ret = -EIO; |
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32 | - goto write_err; |
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33 | - } |
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34 | } |
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35 | |||
36 | write_err: |