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c0f6eebedd
The current code waits for data to be available before attempting a second read. However the second read would not be executed as the while loop will exit. This fix does not wait if all data has been read (skips the call to msleep(0)) and reads a second time if partial data was retrieved on the first read. Worth noticing that since msleep(0) schedules a one jiffy timeout is better to skip such a call. Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io> Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.