18 lines
692 B
Diff
18 lines
692 B
Diff
This patch adds a delay after aborting a command. Some TPMs need
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this and will not process the subsequent command correctly otherwise.
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Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
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--- linux-3.1.noarch/drivers/char/tpm/tpm_tis.c~ 2011-12-20 18:08:01.654464487 -0500
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+++ linux-3.1.noarch/drivers/char/tpm/tpm_tis.c 2011-12-20 18:08:23.476380364 -0500
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@@ -432,6 +432,9 @@ static int probe_itpm(struct tpm_chip *c
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out:
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itpm = rem_itpm;
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tpm_tis_ready(chip);
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+ /* some TPMs need a break here otherwise they will not work
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+ * correctly on the immediately subsequent command */
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+ msleep(chip->vendor.timeout_b);
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release_locality(chip, chip->vendor.locality, 0);
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return rc;
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